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-rwxr-xr-x[-rw-r--r--]ChangeLog43
-rw-r--r--array.c9
-rw-r--r--awk.h2
-rw-r--r--awkgram.c471
-rw-r--r--awkgram.y15
-rw-r--r--custom.h8
-rw-r--r--doc/ChangeLog15
-rw-r--r--doc/gawk.12
-rw-r--r--doc/gawk.info916
-rw-r--r--doc/gawk.texi69
-rw-r--r--doc/gawktexi.in69
-rw-r--r--doc/gawkworkflow.texi8
-rw-r--r--interpret.h1
-rw-r--r--main.c9
-rw-r--r--node.c4
-rw-r--r--re.c22
-rw-r--r--test/ChangeLog15
-rw-r--r--test/Makefile.am9
-rw-r--r--test/Makefile.in19
-rw-r--r--test/Maketests10
-rw-r--r--test/arraysort2.awk34
-rw-r--r--test/arraysort2.ok26
-rw-r--r--test/assignnumfield.awk1
-rw-r--r--test/assignnumfield.in5
-rw-r--r--test/assignnumfield.ok5
-rw-r--r--test/back89.ok1
-rw-r--r--test/funstack.ok10
-rw-r--r--test/gsubtst5.ok4
-rw-r--r--test/lintwarn.awk5
-rw-r--r--test/lintwarn.ok1
30 files changed, 1120 insertions, 688 deletions
diff --git a/ChangeLog b/ChangeLog
index 11b398fa..2c1c9ef6 100644..100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,46 @@
+2018-08-02 Arnold D. Robbins <arnold@skeeve.com>
+
+ * awkgram.y (yylex): Add lint warning upon encountering escaped
+ physical newlines in a string.
+ * node.c (make_str_node): Ditto.
+
+2018-08-01 John E. Malmberg <wb8tyw@qsl.net>
+
+ * custom.h: Include fp.h on OpenVMS.
+ Workaround for bug in math.h missing some declarations.
+
+2018-07-31 Arnold D. Robbins <arnold@skeeve.com>
+
+ * interpret.h (unfield): Add a call to force_string() on
+ new value. See test/assignnumfield.awk. Thanks to
+ Ralph Corderoy <ralph@inputplus.co.uk> for the bug report.
+
+2018-07-31 Arnold D. Robbins <arnold@skeeve.com>
+
+ Handle newlines in -v and fix \-<newline>. Thanks to
+ Samy Mahmoudi <samy.mahmoudi@gmail.com> for the report.
+
+ * awk.h [ELIDE_BACK_NL]: New constant.
+ * awkgram.y (yylex): Disallow any physical newlines in a string
+ even if escaped, in POSIX mode.
+ * main.c (arg_assign): In POSIX mode disallow physical newline
+ in a -v value. Otherwise call make_str_node() with ELIDE_BACK_NL.
+ * node.c (make_str_node): Handle ELIDE_BACK_NL.
+
+2018-07-31 Arnold D. Robbins <arnold@skeeve.com>
+
+ * array.c (cmp_strings): Preserve value of lmin so it can be passed
+ to memcmp() if IGNORECASE comparison failed. Thanks to
+ M. Rashid Zamani <rashid.z@gmail.com> for the report.
+
+2018-07-27 Arnold D. Robbins <arnold@skeeve.com>
+
+ * re.c (make_regexp): Add warnings for unknown escape sequences,
+ similar to what we already do for strings.
+ * awkgram.y: Add lint warning about concatenation as target
+ of `>' redirection. Always use Op_parens so that
+ print "foo" > ("foo" 1) does not warn.
+
2018-07-13 Arnold D. Robbins <arnold@skeeve.com>
* builtin.c (format_nan_inf): New function to generate +nan, -nan,
diff --git a/array.c b/array.c
index 5d953c04..aa52f3a1 100644
--- a/array.c
+++ b/array.c
@@ -979,7 +979,6 @@ cmp_strings(const NODE *n1, const NODE *n2)
char *s1, *s2;
size_t len1, len2;
int ret;
- size_t lmin;
s1 = n1->stptr;
len1 = n1->stlen;
@@ -992,7 +991,9 @@ cmp_strings(const NODE *n1, const NODE *n2)
return 1;
/* len1 > 0 && len2 > 0 */
- lmin = len1 < len2 ? len1 : len2;
+ // make const to ensure it doesn't change if we
+ // need to call memcmp(), below
+ const size_t lmin = len1 < len2 ? len1 : len2;
if (IGNORECASE) {
const unsigned char *cp1 = (const unsigned char *) s1;
@@ -1002,7 +1003,9 @@ cmp_strings(const NODE *n1, const NODE *n2)
ret = strncasecmpmbs((const unsigned char *) cp1,
(const unsigned char *) cp2, lmin);
} else {
- for (ret = 0; lmin-- > 0 && ret == 0; cp1++, cp2++)
+ size_t count = lmin;
+
+ for (ret = 0; count-- > 0 && ret == 0; cp1++, cp2++)
ret = casetable[*cp1] - casetable[*cp2];
}
if (ret != 0)
diff --git a/awk.h b/awk.h
index 581324e8..cfcce86c 100644
--- a/awk.h
+++ b/awk.h
@@ -1318,8 +1318,10 @@ DEREF(NODE *r)
#define make_string(s, l) make_str_node((s), (l), 0)
+// Flags for making string nodes
#define SCAN 1
#define ALREADY_MALLOCED 2
+#define ELIDE_BACK_NL 4
#define cant_happen() r_fatal("internal error line %d, file: %s", \
__LINE__, __FILE__)
diff --git a/awkgram.c b/awkgram.c
index 8df94be8..85544b84 100644
--- a/awkgram.c
+++ b/awkgram.c
@@ -678,19 +678,19 @@ static const yytype_uint16 yyrline[] =
791, 904, 911, 918, 929, 939, 949, 959, 971, 988,
987, 1001, 1013, 1013, 1112, 1112, 1146, 1177, 1186, 1187,
1193, 1194, 1201, 1206, 1218, 1232, 1234, 1242, 1249, 1251,
- 1259, 1268, 1270, 1279, 1280, 1288, 1293, 1293, 1304, 1308,
- 1316, 1317, 1320, 1322, 1327, 1328, 1337, 1338, 1343, 1348,
- 1357, 1359, 1361, 1368, 1369, 1375, 1376, 1381, 1383, 1388,
- 1390, 1398, 1403, 1412, 1413, 1418, 1420, 1425, 1427, 1435,
- 1440, 1448, 1449, 1454, 1461, 1465, 1467, 1469, 1482, 1499,
- 1509, 1516, 1518, 1523, 1525, 1527, 1535, 1537, 1542, 1544,
- 1549, 1551, 1553, 1610, 1612, 1614, 1616, 1618, 1620, 1622,
- 1624, 1638, 1643, 1648, 1673, 1679, 1681, 1683, 1685, 1687,
- 1689, 1694, 1698, 1730, 1737, 1743, 1749, 1762, 1763, 1764,
- 1769, 1774, 1778, 1782, 1797, 1818, 1823, 1860, 1889, 1890,
- 1896, 1897, 1902, 1904, 1911, 1928, 1945, 1947, 1954, 1959,
- 1967, 1977, 1989, 1998, 2002, 2006, 2010, 2014, 2018, 2021,
- 2023, 2027, 2031, 2035
+ 1259, 1268, 1270, 1279, 1280, 1288, 1293, 1293, 1306, 1310,
+ 1318, 1319, 1322, 1324, 1329, 1330, 1339, 1340, 1345, 1350,
+ 1359, 1361, 1363, 1370, 1371, 1377, 1378, 1383, 1385, 1390,
+ 1392, 1400, 1405, 1414, 1415, 1420, 1422, 1427, 1429, 1437,
+ 1442, 1450, 1451, 1456, 1463, 1467, 1469, 1471, 1484, 1501,
+ 1511, 1518, 1520, 1525, 1527, 1529, 1537, 1539, 1544, 1546,
+ 1551, 1553, 1555, 1612, 1614, 1616, 1618, 1620, 1622, 1624,
+ 1626, 1640, 1645, 1650, 1675, 1681, 1683, 1685, 1687, 1689,
+ 1691, 1696, 1700, 1732, 1740, 1746, 1752, 1765, 1766, 1767,
+ 1772, 1777, 1781, 1785, 1800, 1821, 1826, 1863, 1892, 1893,
+ 1899, 1900, 1905, 1907, 1914, 1931, 1948, 1950, 1957, 1962,
+ 1970, 1980, 1992, 2001, 2005, 2009, 2013, 2017, 2021, 2024,
+ 2026, 2030, 2034, 2038
};
#endif
@@ -3186,65 +3186,67 @@ regular_print:
&& (yyvsp[0])->lasti->opcode == Op_K_getline_redir
&& (yyvsp[0])->lasti->redir_type == redirect_twoway)
yyerror(_("multistage two-way pipelines don't work"));
+ if (do_lint && (yyvsp[-2])->redir_type == redirect_output && (yyvsp[0])->lasti->opcode == Op_concat)
+ lintwarn(_("concatenation as I/O `>' redirection target is ambiguous"));
(yyval) = list_prepend((yyvsp[0]), (yyvsp[-2]));
}
-#line 3192 "awkgram.c" /* yacc.c:1646 */
+#line 3194 "awkgram.c" /* yacc.c:1646 */
break;
case 88:
-#line 1305 "awkgram.y" /* yacc.c:1646 */
+#line 1307 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = mk_condition((yyvsp[-3]), (yyvsp[-5]), (yyvsp[0]), NULL, NULL);
}
-#line 3200 "awkgram.c" /* yacc.c:1646 */
+#line 3202 "awkgram.c" /* yacc.c:1646 */
break;
case 89:
-#line 1310 "awkgram.y" /* yacc.c:1646 */
+#line 1312 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = mk_condition((yyvsp[-6]), (yyvsp[-8]), (yyvsp[-3]), (yyvsp[-2]), (yyvsp[0]));
}
-#line 3208 "awkgram.c" /* yacc.c:1646 */
+#line 3210 "awkgram.c" /* yacc.c:1646 */
break;
case 94:
-#line 1327 "awkgram.y" /* yacc.c:1646 */
+#line 1329 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 3214 "awkgram.c" /* yacc.c:1646 */
+#line 3216 "awkgram.c" /* yacc.c:1646 */
break;
case 95:
-#line 1329 "awkgram.y" /* yacc.c:1646 */
+#line 1331 "awkgram.y" /* yacc.c:1646 */
{
bcfree((yyvsp[-1]));
(yyval) = (yyvsp[0]);
}
-#line 3223 "awkgram.c" /* yacc.c:1646 */
+#line 3225 "awkgram.c" /* yacc.c:1646 */
break;
case 96:
-#line 1337 "awkgram.y" /* yacc.c:1646 */
+#line 1339 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 3229 "awkgram.c" /* yacc.c:1646 */
+#line 3231 "awkgram.c" /* yacc.c:1646 */
break;
case 97:
-#line 1339 "awkgram.y" /* yacc.c:1646 */
+#line 1341 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3235 "awkgram.c" /* yacc.c:1646 */
+#line 3237 "awkgram.c" /* yacc.c:1646 */
break;
case 98:
-#line 1344 "awkgram.y" /* yacc.c:1646 */
+#line 1346 "awkgram.y" /* yacc.c:1646 */
{
(yyvsp[0])->param_count = 0;
(yyval) = list_create((yyvsp[0]));
}
-#line 3244 "awkgram.c" /* yacc.c:1646 */
+#line 3246 "awkgram.c" /* yacc.c:1646 */
break;
case 99:
-#line 1349 "awkgram.y" /* yacc.c:1646 */
+#line 1351 "awkgram.y" /* yacc.c:1646 */
{
if ((yyvsp[-2]) != NULL && (yyvsp[0]) != NULL) {
(yyvsp[0])->param_count = (yyvsp[-2])->lasti->param_count + 1;
@@ -3253,74 +3255,74 @@ regular_print:
} else
(yyval) = NULL;
}
-#line 3257 "awkgram.c" /* yacc.c:1646 */
+#line 3259 "awkgram.c" /* yacc.c:1646 */
break;
case 100:
-#line 1358 "awkgram.y" /* yacc.c:1646 */
+#line 1360 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 3263 "awkgram.c" /* yacc.c:1646 */
+#line 3265 "awkgram.c" /* yacc.c:1646 */
break;
case 101:
-#line 1360 "awkgram.y" /* yacc.c:1646 */
+#line 1362 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[-1]); }
-#line 3269 "awkgram.c" /* yacc.c:1646 */
+#line 3271 "awkgram.c" /* yacc.c:1646 */
break;
case 102:
-#line 1362 "awkgram.y" /* yacc.c:1646 */
+#line 1364 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[-2]); }
-#line 3275 "awkgram.c" /* yacc.c:1646 */
+#line 3277 "awkgram.c" /* yacc.c:1646 */
break;
case 103:
-#line 1368 "awkgram.y" /* yacc.c:1646 */
+#line 1370 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 3281 "awkgram.c" /* yacc.c:1646 */
+#line 3283 "awkgram.c" /* yacc.c:1646 */
break;
case 104:
-#line 1370 "awkgram.y" /* yacc.c:1646 */
+#line 1372 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3287 "awkgram.c" /* yacc.c:1646 */
+#line 3289 "awkgram.c" /* yacc.c:1646 */
break;
case 105:
-#line 1375 "awkgram.y" /* yacc.c:1646 */
+#line 1377 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 3293 "awkgram.c" /* yacc.c:1646 */
+#line 3295 "awkgram.c" /* yacc.c:1646 */
break;
case 106:
-#line 1377 "awkgram.y" /* yacc.c:1646 */
+#line 1379 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3299 "awkgram.c" /* yacc.c:1646 */
+#line 3301 "awkgram.c" /* yacc.c:1646 */
break;
case 107:
-#line 1382 "awkgram.y" /* yacc.c:1646 */
+#line 1384 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_expression_list(NULL, (yyvsp[0])); }
-#line 3305 "awkgram.c" /* yacc.c:1646 */
+#line 3307 "awkgram.c" /* yacc.c:1646 */
break;
case 108:
-#line 1384 "awkgram.y" /* yacc.c:1646 */
+#line 1386 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = mk_expression_list((yyvsp[-2]), (yyvsp[0]));
yyerrok;
}
-#line 3314 "awkgram.c" /* yacc.c:1646 */
+#line 3316 "awkgram.c" /* yacc.c:1646 */
break;
case 109:
-#line 1389 "awkgram.y" /* yacc.c:1646 */
+#line 1391 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 3320 "awkgram.c" /* yacc.c:1646 */
+#line 3322 "awkgram.c" /* yacc.c:1646 */
break;
case 110:
-#line 1391 "awkgram.y" /* yacc.c:1646 */
+#line 1393 "awkgram.y" /* yacc.c:1646 */
{
/*
* Returning the expression list instead of NULL lets
@@ -3328,62 +3330,62 @@ regular_print:
*/
(yyval) = (yyvsp[-1]);
}
-#line 3332 "awkgram.c" /* yacc.c:1646 */
+#line 3334 "awkgram.c" /* yacc.c:1646 */
break;
case 111:
-#line 1399 "awkgram.y" /* yacc.c:1646 */
+#line 1401 "awkgram.y" /* yacc.c:1646 */
{
/* Ditto */
(yyval) = mk_expression_list((yyvsp[-2]), (yyvsp[0]));
}
-#line 3341 "awkgram.c" /* yacc.c:1646 */
+#line 3343 "awkgram.c" /* yacc.c:1646 */
break;
case 112:
-#line 1404 "awkgram.y" /* yacc.c:1646 */
+#line 1406 "awkgram.y" /* yacc.c:1646 */
{
/* Ditto */
(yyval) = (yyvsp[-2]);
}
-#line 3350 "awkgram.c" /* yacc.c:1646 */
+#line 3352 "awkgram.c" /* yacc.c:1646 */
break;
case 113:
-#line 1412 "awkgram.y" /* yacc.c:1646 */
+#line 1414 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 3356 "awkgram.c" /* yacc.c:1646 */
+#line 3358 "awkgram.c" /* yacc.c:1646 */
break;
case 114:
-#line 1414 "awkgram.y" /* yacc.c:1646 */
+#line 1416 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3362 "awkgram.c" /* yacc.c:1646 */
+#line 3364 "awkgram.c" /* yacc.c:1646 */
break;
case 115:
-#line 1419 "awkgram.y" /* yacc.c:1646 */
+#line 1421 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_expression_list(NULL, (yyvsp[0])); }
-#line 3368 "awkgram.c" /* yacc.c:1646 */
+#line 3370 "awkgram.c" /* yacc.c:1646 */
break;
case 116:
-#line 1421 "awkgram.y" /* yacc.c:1646 */
+#line 1423 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = mk_expression_list((yyvsp[-2]), (yyvsp[0]));
yyerrok;
}
-#line 3377 "awkgram.c" /* yacc.c:1646 */
+#line 3379 "awkgram.c" /* yacc.c:1646 */
break;
case 117:
-#line 1426 "awkgram.y" /* yacc.c:1646 */
+#line 1428 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 3383 "awkgram.c" /* yacc.c:1646 */
+#line 3385 "awkgram.c" /* yacc.c:1646 */
break;
case 118:
-#line 1428 "awkgram.y" /* yacc.c:1646 */
+#line 1430 "awkgram.y" /* yacc.c:1646 */
{
/*
* Returning the expression list instead of NULL lets
@@ -3391,72 +3393,72 @@ regular_print:
*/
(yyval) = (yyvsp[-1]);
}
-#line 3395 "awkgram.c" /* yacc.c:1646 */
+#line 3397 "awkgram.c" /* yacc.c:1646 */
break;
case 119:
-#line 1436 "awkgram.y" /* yacc.c:1646 */
+#line 1438 "awkgram.y" /* yacc.c:1646 */
{
/* Ditto */
(yyval) = mk_expression_list((yyvsp[-2]), (yyvsp[0]));
}
-#line 3404 "awkgram.c" /* yacc.c:1646 */
+#line 3406 "awkgram.c" /* yacc.c:1646 */
break;
case 120:
-#line 1441 "awkgram.y" /* yacc.c:1646 */
+#line 1443 "awkgram.y" /* yacc.c:1646 */
{
/* Ditto */
(yyval) = (yyvsp[-2]);
}
-#line 3413 "awkgram.c" /* yacc.c:1646 */
+#line 3415 "awkgram.c" /* yacc.c:1646 */
break;
case 121:
-#line 1448 "awkgram.y" /* yacc.c:1646 */
+#line 1450 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3419 "awkgram.c" /* yacc.c:1646 */
+#line 3421 "awkgram.c" /* yacc.c:1646 */
break;
case 122:
-#line 1449 "awkgram.y" /* yacc.c:1646 */
+#line 1451 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = list_create((yyvsp[0])); }
-#line 3425 "awkgram.c" /* yacc.c:1646 */
+#line 3427 "awkgram.c" /* yacc.c:1646 */
break;
case 123:
-#line 1455 "awkgram.y" /* yacc.c:1646 */
+#line 1457 "awkgram.y" /* yacc.c:1646 */
{
if (do_lint && (yyvsp[0])->lasti->opcode == Op_match_rec)
lintwarn_ln((yyvsp[-1])->source_line,
_("regular expression on right of assignment"));
(yyval) = mk_assignment((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1]));
}
-#line 3436 "awkgram.c" /* yacc.c:1646 */
+#line 3438 "awkgram.c" /* yacc.c:1646 */
break;
case 124:
-#line 1462 "awkgram.y" /* yacc.c:1646 */
+#line 1464 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = mk_assignment((yyvsp[-2]), list_create((yyvsp[0])), (yyvsp[-1]));
}
-#line 3444 "awkgram.c" /* yacc.c:1646 */
+#line 3446 "awkgram.c" /* yacc.c:1646 */
break;
case 125:
-#line 1466 "awkgram.y" /* yacc.c:1646 */
+#line 1468 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_boolean((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3450 "awkgram.c" /* yacc.c:1646 */
+#line 3452 "awkgram.c" /* yacc.c:1646 */
break;
case 126:
-#line 1468 "awkgram.y" /* yacc.c:1646 */
+#line 1470 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_boolean((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3456 "awkgram.c" /* yacc.c:1646 */
+#line 3458 "awkgram.c" /* yacc.c:1646 */
break;
case 127:
-#line 1470 "awkgram.y" /* yacc.c:1646 */
+#line 1472 "awkgram.y" /* yacc.c:1646 */
{
if ((yyvsp[-2])->lasti->opcode == Op_match_rec)
warning_ln((yyvsp[-1])->source_line,
@@ -3469,11 +3471,11 @@ regular_print:
bcfree((yyvsp[0]));
(yyval) = list_append((yyvsp[-2]), (yyvsp[-1]));
}
-#line 3473 "awkgram.c" /* yacc.c:1646 */
+#line 3475 "awkgram.c" /* yacc.c:1646 */
break;
case 128:
-#line 1483 "awkgram.y" /* yacc.c:1646 */
+#line 1485 "awkgram.y" /* yacc.c:1646 */
{
if ((yyvsp[-2])->lasti->opcode == Op_match_rec)
warning_ln((yyvsp[-1])->source_line,
@@ -3490,11 +3492,11 @@ regular_print:
(yyval) = list_append(list_merge((yyvsp[-2]), (yyvsp[0])), (yyvsp[-1]));
}
}
-#line 3494 "awkgram.c" /* yacc.c:1646 */
+#line 3496 "awkgram.c" /* yacc.c:1646 */
break;
case 129:
-#line 1500 "awkgram.y" /* yacc.c:1646 */
+#line 1502 "awkgram.y" /* yacc.c:1646 */
{
if (do_lint_old)
warning_ln((yyvsp[-1])->source_line,
@@ -3504,91 +3506,91 @@ regular_print:
(yyvsp[-1])->expr_count = 1;
(yyval) = list_append(list_merge((yyvsp[-2]), (yyvsp[0])), (yyvsp[-1]));
}
-#line 3508 "awkgram.c" /* yacc.c:1646 */
+#line 3510 "awkgram.c" /* yacc.c:1646 */
break;
case 130:
-#line 1510 "awkgram.y" /* yacc.c:1646 */
+#line 1512 "awkgram.y" /* yacc.c:1646 */
{
if (do_lint && (yyvsp[0])->lasti->opcode == Op_match_rec)
lintwarn_ln((yyvsp[-1])->source_line,
_("regular expression on right of comparison"));
(yyval) = list_append(list_merge((yyvsp[-2]), (yyvsp[0])), (yyvsp[-1]));
}
-#line 3519 "awkgram.c" /* yacc.c:1646 */
+#line 3521 "awkgram.c" /* yacc.c:1646 */
break;
case 131:
-#line 1517 "awkgram.y" /* yacc.c:1646 */
+#line 1519 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_condition((yyvsp[-4]), (yyvsp[-3]), (yyvsp[-2]), (yyvsp[-1]), (yyvsp[0])); }
-#line 3525 "awkgram.c" /* yacc.c:1646 */
+#line 3527 "awkgram.c" /* yacc.c:1646 */
break;
case 132:
-#line 1519 "awkgram.y" /* yacc.c:1646 */
+#line 1521 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3531 "awkgram.c" /* yacc.c:1646 */
+#line 3533 "awkgram.c" /* yacc.c:1646 */
break;
case 133:
-#line 1524 "awkgram.y" /* yacc.c:1646 */
+#line 1526 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3537 "awkgram.c" /* yacc.c:1646 */
+#line 3539 "awkgram.c" /* yacc.c:1646 */
break;
case 134:
-#line 1526 "awkgram.y" /* yacc.c:1646 */
+#line 1528 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3543 "awkgram.c" /* yacc.c:1646 */
+#line 3545 "awkgram.c" /* yacc.c:1646 */
break;
case 135:
-#line 1528 "awkgram.y" /* yacc.c:1646 */
+#line 1530 "awkgram.y" /* yacc.c:1646 */
{
(yyvsp[0])->opcode = Op_assign_quotient;
(yyval) = (yyvsp[0]);
}
-#line 3552 "awkgram.c" /* yacc.c:1646 */
+#line 3554 "awkgram.c" /* yacc.c:1646 */
break;
case 136:
-#line 1536 "awkgram.y" /* yacc.c:1646 */
+#line 1538 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3558 "awkgram.c" /* yacc.c:1646 */
+#line 3560 "awkgram.c" /* yacc.c:1646 */
break;
case 137:
-#line 1538 "awkgram.y" /* yacc.c:1646 */
+#line 1540 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3564 "awkgram.c" /* yacc.c:1646 */
+#line 3566 "awkgram.c" /* yacc.c:1646 */
break;
case 138:
-#line 1543 "awkgram.y" /* yacc.c:1646 */
+#line 1545 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3570 "awkgram.c" /* yacc.c:1646 */
+#line 3572 "awkgram.c" /* yacc.c:1646 */
break;
case 139:
-#line 1545 "awkgram.y" /* yacc.c:1646 */
+#line 1547 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3576 "awkgram.c" /* yacc.c:1646 */
+#line 3578 "awkgram.c" /* yacc.c:1646 */
break;
case 140:
-#line 1550 "awkgram.y" /* yacc.c:1646 */
+#line 1552 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3582 "awkgram.c" /* yacc.c:1646 */
+#line 3584 "awkgram.c" /* yacc.c:1646 */
break;
case 141:
-#line 1552 "awkgram.y" /* yacc.c:1646 */
+#line 1554 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 3588 "awkgram.c" /* yacc.c:1646 */
+#line 3590 "awkgram.c" /* yacc.c:1646 */
break;
case 142:
-#line 1554 "awkgram.y" /* yacc.c:1646 */
+#line 1556 "awkgram.y" /* yacc.c:1646 */
{
int count = 2;
bool is_simple_var = false;
@@ -3642,47 +3644,47 @@ regular_print:
max_args = count;
}
}
-#line 3646 "awkgram.c" /* yacc.c:1646 */
+#line 3648 "awkgram.c" /* yacc.c:1646 */
break;
case 144:
-#line 1613 "awkgram.y" /* yacc.c:1646 */
+#line 1615 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3652 "awkgram.c" /* yacc.c:1646 */
+#line 3654 "awkgram.c" /* yacc.c:1646 */
break;
case 145:
-#line 1615 "awkgram.y" /* yacc.c:1646 */
+#line 1617 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3658 "awkgram.c" /* yacc.c:1646 */
+#line 3660 "awkgram.c" /* yacc.c:1646 */
break;
case 146:
-#line 1617 "awkgram.y" /* yacc.c:1646 */
+#line 1619 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3664 "awkgram.c" /* yacc.c:1646 */
+#line 3666 "awkgram.c" /* yacc.c:1646 */
break;
case 147:
-#line 1619 "awkgram.y" /* yacc.c:1646 */
+#line 1621 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3670 "awkgram.c" /* yacc.c:1646 */
+#line 3672 "awkgram.c" /* yacc.c:1646 */
break;
case 148:
-#line 1621 "awkgram.y" /* yacc.c:1646 */
+#line 1623 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3676 "awkgram.c" /* yacc.c:1646 */
+#line 3678 "awkgram.c" /* yacc.c:1646 */
break;
case 149:
-#line 1623 "awkgram.y" /* yacc.c:1646 */
+#line 1625 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3682 "awkgram.c" /* yacc.c:1646 */
+#line 3684 "awkgram.c" /* yacc.c:1646 */
break;
case 150:
-#line 1625 "awkgram.y" /* yacc.c:1646 */
+#line 1627 "awkgram.y" /* yacc.c:1646 */
{
/*
* In BEGINFILE/ENDFILE, allow `getline [var] < file'
@@ -3696,29 +3698,29 @@ regular_print:
_("non-redirected `getline' undefined inside END action"));
(yyval) = mk_getline((yyvsp[-2]), (yyvsp[-1]), (yyvsp[0]), redirect_input);
}
-#line 3700 "awkgram.c" /* yacc.c:1646 */
+#line 3702 "awkgram.c" /* yacc.c:1646 */
break;
case 151:
-#line 1639 "awkgram.y" /* yacc.c:1646 */
+#line 1641 "awkgram.y" /* yacc.c:1646 */
{
(yyvsp[0])->opcode = Op_postincrement;
(yyval) = mk_assignment((yyvsp[-1]), NULL, (yyvsp[0]));
}
-#line 3709 "awkgram.c" /* yacc.c:1646 */
+#line 3711 "awkgram.c" /* yacc.c:1646 */
break;
case 152:
-#line 1644 "awkgram.y" /* yacc.c:1646 */
+#line 1646 "awkgram.y" /* yacc.c:1646 */
{
(yyvsp[0])->opcode = Op_postdecrement;
(yyval) = mk_assignment((yyvsp[-1]), NULL, (yyvsp[0]));
}
-#line 3718 "awkgram.c" /* yacc.c:1646 */
+#line 3720 "awkgram.c" /* yacc.c:1646 */
break;
case 153:
-#line 1649 "awkgram.y" /* yacc.c:1646 */
+#line 1651 "awkgram.y" /* yacc.c:1646 */
{
if (do_lint_old) {
warning_ln((yyvsp[-1])->source_line,
@@ -3738,64 +3740,64 @@ regular_print:
(yyval) = list_append(list_merge(t, (yyvsp[0])), (yyvsp[-1]));
}
}
-#line 3742 "awkgram.c" /* yacc.c:1646 */
+#line 3744 "awkgram.c" /* yacc.c:1646 */
break;
case 154:
-#line 1674 "awkgram.y" /* yacc.c:1646 */
+#line 1676 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = mk_getline((yyvsp[-1]), (yyvsp[0]), (yyvsp[-3]), (yyvsp[-2])->redir_type);
bcfree((yyvsp[-2]));
}
-#line 3751 "awkgram.c" /* yacc.c:1646 */
+#line 3753 "awkgram.c" /* yacc.c:1646 */
break;
case 155:
-#line 1680 "awkgram.y" /* yacc.c:1646 */
+#line 1682 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3757 "awkgram.c" /* yacc.c:1646 */
+#line 3759 "awkgram.c" /* yacc.c:1646 */
break;
case 156:
-#line 1682 "awkgram.y" /* yacc.c:1646 */
+#line 1684 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3763 "awkgram.c" /* yacc.c:1646 */
+#line 3765 "awkgram.c" /* yacc.c:1646 */
break;
case 157:
-#line 1684 "awkgram.y" /* yacc.c:1646 */
+#line 1686 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3769 "awkgram.c" /* yacc.c:1646 */
+#line 3771 "awkgram.c" /* yacc.c:1646 */
break;
case 158:
-#line 1686 "awkgram.y" /* yacc.c:1646 */
+#line 1688 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3775 "awkgram.c" /* yacc.c:1646 */
+#line 3777 "awkgram.c" /* yacc.c:1646 */
break;
case 159:
-#line 1688 "awkgram.y" /* yacc.c:1646 */
+#line 1690 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3781 "awkgram.c" /* yacc.c:1646 */
+#line 3783 "awkgram.c" /* yacc.c:1646 */
break;
case 160:
-#line 1690 "awkgram.y" /* yacc.c:1646 */
+#line 1692 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = mk_binary((yyvsp[-2]), (yyvsp[0]), (yyvsp[-1])); }
-#line 3787 "awkgram.c" /* yacc.c:1646 */
+#line 3789 "awkgram.c" /* yacc.c:1646 */
break;
case 161:
-#line 1695 "awkgram.y" /* yacc.c:1646 */
+#line 1697 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = list_create((yyvsp[0]));
}
-#line 3795 "awkgram.c" /* yacc.c:1646 */
+#line 3797 "awkgram.c" /* yacc.c:1646 */
break;
case 162:
-#line 1699 "awkgram.y" /* yacc.c:1646 */
+#line 1701 "awkgram.y" /* yacc.c:1646 */
{
if ((yyvsp[0])->opcode == Op_match_rec) {
(yyvsp[0])->opcode = Op_nomatch;
@@ -3827,42 +3829,43 @@ regular_print:
}
}
}
-#line 3831 "awkgram.c" /* yacc.c:1646 */
+#line 3833 "awkgram.c" /* yacc.c:1646 */
break;
case 163:
-#line 1731 "awkgram.y" /* yacc.c:1646 */
+#line 1733 "awkgram.y" /* yacc.c:1646 */
{
- if (do_pretty_print)
- (yyval) = list_append((yyvsp[-1]), bcalloc(Op_parens, 1, sourceline));
- else
- (yyval) = (yyvsp[-1]);
+ // Always include. Allows us to lint warn on
+ // print "foo" > "bar" 1
+ // but not warn on
+ // print "foo" > ("bar" 1)
+ (yyval) = list_append((yyvsp[-1]), bcalloc(Op_parens, 1, sourceline));
}
-#line 3842 "awkgram.c" /* yacc.c:1646 */
+#line 3845 "awkgram.c" /* yacc.c:1646 */
break;
case 164:
-#line 1738 "awkgram.y" /* yacc.c:1646 */
+#line 1741 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = snode((yyvsp[-1]), (yyvsp[-3]));
if ((yyval) == NULL)
YYABORT;
}
-#line 3852 "awkgram.c" /* yacc.c:1646 */
+#line 3855 "awkgram.c" /* yacc.c:1646 */
break;
case 165:
-#line 1744 "awkgram.y" /* yacc.c:1646 */
+#line 1747 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = snode((yyvsp[-1]), (yyvsp[-3]));
if ((yyval) == NULL)
YYABORT;
}
-#line 3862 "awkgram.c" /* yacc.c:1646 */
+#line 3865 "awkgram.c" /* yacc.c:1646 */
break;
case 166:
-#line 1750 "awkgram.y" /* yacc.c:1646 */
+#line 1753 "awkgram.y" /* yacc.c:1646 */
{
static bool warned = false;
@@ -3875,45 +3878,45 @@ regular_print:
if ((yyval) == NULL)
YYABORT;
}
-#line 3879 "awkgram.c" /* yacc.c:1646 */
+#line 3882 "awkgram.c" /* yacc.c:1646 */
break;
case 169:
-#line 1765 "awkgram.y" /* yacc.c:1646 */
+#line 1768 "awkgram.y" /* yacc.c:1646 */
{
(yyvsp[-1])->opcode = Op_preincrement;
(yyval) = mk_assignment((yyvsp[0]), NULL, (yyvsp[-1]));
}
-#line 3888 "awkgram.c" /* yacc.c:1646 */
+#line 3891 "awkgram.c" /* yacc.c:1646 */
break;
case 170:
-#line 1770 "awkgram.y" /* yacc.c:1646 */
+#line 1773 "awkgram.y" /* yacc.c:1646 */
{
(yyvsp[-1])->opcode = Op_predecrement;
(yyval) = mk_assignment((yyvsp[0]), NULL, (yyvsp[-1]));
}
-#line 3897 "awkgram.c" /* yacc.c:1646 */
+#line 3900 "awkgram.c" /* yacc.c:1646 */
break;
case 171:
-#line 1775 "awkgram.y" /* yacc.c:1646 */
+#line 1778 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = list_create((yyvsp[0]));
}
-#line 3905 "awkgram.c" /* yacc.c:1646 */
+#line 3908 "awkgram.c" /* yacc.c:1646 */
break;
case 172:
-#line 1779 "awkgram.y" /* yacc.c:1646 */
+#line 1782 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = list_create((yyvsp[0]));
}
-#line 3913 "awkgram.c" /* yacc.c:1646 */
+#line 3916 "awkgram.c" /* yacc.c:1646 */
break;
case 173:
-#line 1783 "awkgram.y" /* yacc.c:1646 */
+#line 1786 "awkgram.y" /* yacc.c:1646 */
{
if ((yyvsp[0])->lasti->opcode == Op_push_i
&& ((yyvsp[0])->lasti->memory->flags & STRING) == 0
@@ -3928,11 +3931,11 @@ regular_print:
(yyval) = list_append((yyvsp[0]), (yyvsp[-1]));
}
}
-#line 3932 "awkgram.c" /* yacc.c:1646 */
+#line 3935 "awkgram.c" /* yacc.c:1646 */
break;
case 174:
-#line 1798 "awkgram.y" /* yacc.c:1646 */
+#line 1801 "awkgram.y" /* yacc.c:1646 */
{
if ((yyvsp[0])->lasti->opcode == Op_push_i
&& ((yyvsp[0])->lasti->memory->flags & STRING) == 0
@@ -3950,20 +3953,20 @@ regular_print:
(yyval) = list_append((yyvsp[0]), (yyvsp[-1]));
}
}
-#line 3954 "awkgram.c" /* yacc.c:1646 */
+#line 3957 "awkgram.c" /* yacc.c:1646 */
break;
case 175:
-#line 1819 "awkgram.y" /* yacc.c:1646 */
+#line 1822 "awkgram.y" /* yacc.c:1646 */
{
func_use((yyvsp[0])->lasti->func_name, FUNC_USE);
(yyval) = (yyvsp[0]);
}
-#line 3963 "awkgram.c" /* yacc.c:1646 */
+#line 3966 "awkgram.c" /* yacc.c:1646 */
break;
case 176:
-#line 1824 "awkgram.y" /* yacc.c:1646 */
+#line 1827 "awkgram.y" /* yacc.c:1646 */
{
/* indirect function call */
INSTRUCTION *f, *t;
@@ -3997,11 +4000,11 @@ regular_print:
(yyval) = list_prepend((yyvsp[0]), t);
at_seen = false;
}
-#line 4001 "awkgram.c" /* yacc.c:1646 */
+#line 4004 "awkgram.c" /* yacc.c:1646 */
break;
case 177:
-#line 1861 "awkgram.y" /* yacc.c:1646 */
+#line 1864 "awkgram.y" /* yacc.c:1646 */
{
NODE *n;
@@ -4026,49 +4029,49 @@ regular_print:
(yyval) = list_append(t, (yyvsp[-3]));
}
}
-#line 4030 "awkgram.c" /* yacc.c:1646 */
+#line 4033 "awkgram.c" /* yacc.c:1646 */
break;
case 178:
-#line 1889 "awkgram.y" /* yacc.c:1646 */
+#line 1892 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 4036 "awkgram.c" /* yacc.c:1646 */
+#line 4039 "awkgram.c" /* yacc.c:1646 */
break;
case 179:
-#line 1891 "awkgram.y" /* yacc.c:1646 */
+#line 1894 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 4042 "awkgram.c" /* yacc.c:1646 */
+#line 4045 "awkgram.c" /* yacc.c:1646 */
break;
case 180:
-#line 1896 "awkgram.y" /* yacc.c:1646 */
+#line 1899 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 4048 "awkgram.c" /* yacc.c:1646 */
+#line 4051 "awkgram.c" /* yacc.c:1646 */
break;
case 181:
-#line 1898 "awkgram.y" /* yacc.c:1646 */
+#line 1901 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[-1]); }
-#line 4054 "awkgram.c" /* yacc.c:1646 */
+#line 4057 "awkgram.c" /* yacc.c:1646 */
break;
case 182:
-#line 1903 "awkgram.y" /* yacc.c:1646 */
+#line 1906 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 4060 "awkgram.c" /* yacc.c:1646 */
+#line 4063 "awkgram.c" /* yacc.c:1646 */
break;
case 183:
-#line 1905 "awkgram.y" /* yacc.c:1646 */
+#line 1908 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = list_merge((yyvsp[-1]), (yyvsp[0]));
}
-#line 4068 "awkgram.c" /* yacc.c:1646 */
+#line 4071 "awkgram.c" /* yacc.c:1646 */
break;
case 184:
-#line 1912 "awkgram.y" /* yacc.c:1646 */
+#line 1915 "awkgram.y" /* yacc.c:1646 */
{
INSTRUCTION *ip = (yyvsp[0])->lasti;
int count = ip->sub_count; /* # of SUBSEP-seperated expressions */
@@ -4082,11 +4085,11 @@ regular_print:
sub_counter++; /* count # of dimensions */
(yyval) = (yyvsp[0]);
}
-#line 4086 "awkgram.c" /* yacc.c:1646 */
+#line 4089 "awkgram.c" /* yacc.c:1646 */
break;
case 185:
-#line 1929 "awkgram.y" /* yacc.c:1646 */
+#line 1932 "awkgram.y" /* yacc.c:1646 */
{
INSTRUCTION *t = (yyvsp[-1]);
if ((yyvsp[-1]) == NULL) {
@@ -4100,31 +4103,31 @@ regular_print:
(yyvsp[0])->sub_count = count_expressions(&t, false);
(yyval) = list_append(t, (yyvsp[0]));
}
-#line 4104 "awkgram.c" /* yacc.c:1646 */
+#line 4107 "awkgram.c" /* yacc.c:1646 */
break;
case 186:
-#line 1946 "awkgram.y" /* yacc.c:1646 */
+#line 1949 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); }
-#line 4110 "awkgram.c" /* yacc.c:1646 */
+#line 4113 "awkgram.c" /* yacc.c:1646 */
break;
case 187:
-#line 1948 "awkgram.y" /* yacc.c:1646 */
+#line 1951 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = list_merge((yyvsp[-1]), (yyvsp[0]));
}
-#line 4118 "awkgram.c" /* yacc.c:1646 */
+#line 4121 "awkgram.c" /* yacc.c:1646 */
break;
case 188:
-#line 1955 "awkgram.y" /* yacc.c:1646 */
+#line 1958 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[-1]); }
-#line 4124 "awkgram.c" /* yacc.c:1646 */
+#line 4127 "awkgram.c" /* yacc.c:1646 */
break;
case 189:
-#line 1960 "awkgram.y" /* yacc.c:1646 */
+#line 1963 "awkgram.y" /* yacc.c:1646 */
{
char *var_name = (yyvsp[0])->lextok;
@@ -4132,22 +4135,22 @@ regular_print:
(yyvsp[0])->memory = variable((yyvsp[0])->source_line, var_name, Node_var_new);
(yyval) = list_create((yyvsp[0]));
}
-#line 4136 "awkgram.c" /* yacc.c:1646 */
+#line 4139 "awkgram.c" /* yacc.c:1646 */
break;
case 190:
-#line 1968 "awkgram.y" /* yacc.c:1646 */
+#line 1971 "awkgram.y" /* yacc.c:1646 */
{
char *arr = (yyvsp[-1])->lextok;
(yyvsp[-1])->memory = variable((yyvsp[-1])->source_line, arr, Node_var_new);
(yyvsp[-1])->opcode = Op_push_array;
(yyval) = list_prepend((yyvsp[0]), (yyvsp[-1]));
}
-#line 4147 "awkgram.c" /* yacc.c:1646 */
+#line 4150 "awkgram.c" /* yacc.c:1646 */
break;
case 191:
-#line 1978 "awkgram.y" /* yacc.c:1646 */
+#line 1981 "awkgram.y" /* yacc.c:1646 */
{
INSTRUCTION *ip = (yyvsp[0])->nexti;
if (ip->opcode == Op_push
@@ -4159,73 +4162,73 @@ regular_print:
} else
(yyval) = (yyvsp[0]);
}
-#line 4163 "awkgram.c" /* yacc.c:1646 */
+#line 4166 "awkgram.c" /* yacc.c:1646 */
break;
case 192:
-#line 1990 "awkgram.y" /* yacc.c:1646 */
+#line 1993 "awkgram.y" /* yacc.c:1646 */
{
(yyval) = list_append((yyvsp[-1]), (yyvsp[-2]));
if ((yyvsp[0]) != NULL)
mk_assignment((yyvsp[-1]), NULL, (yyvsp[0]));
}
-#line 4173 "awkgram.c" /* yacc.c:1646 */
+#line 4176 "awkgram.c" /* yacc.c:1646 */
break;
case 193:
-#line 1999 "awkgram.y" /* yacc.c:1646 */
+#line 2002 "awkgram.y" /* yacc.c:1646 */
{
(yyvsp[0])->opcode = Op_postincrement;
}
-#line 4181 "awkgram.c" /* yacc.c:1646 */
+#line 4184 "awkgram.c" /* yacc.c:1646 */
break;
case 194:
-#line 2003 "awkgram.y" /* yacc.c:1646 */
+#line 2006 "awkgram.y" /* yacc.c:1646 */
{
(yyvsp[0])->opcode = Op_postdecrement;
}
-#line 4189 "awkgram.c" /* yacc.c:1646 */
+#line 4192 "awkgram.c" /* yacc.c:1646 */
break;
case 195:
-#line 2006 "awkgram.y" /* yacc.c:1646 */
+#line 2009 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = NULL; }
-#line 4195 "awkgram.c" /* yacc.c:1646 */
+#line 4198 "awkgram.c" /* yacc.c:1646 */
break;
case 197:
-#line 2014 "awkgram.y" /* yacc.c:1646 */
+#line 2017 "awkgram.y" /* yacc.c:1646 */
{ yyerrok; }
-#line 4201 "awkgram.c" /* yacc.c:1646 */
+#line 4204 "awkgram.c" /* yacc.c:1646 */
break;
case 198:
-#line 2018 "awkgram.y" /* yacc.c:1646 */
+#line 2021 "awkgram.y" /* yacc.c:1646 */
{ yyerrok; }
-#line 4207 "awkgram.c" /* yacc.c:1646 */
+#line 4210 "awkgram.c" /* yacc.c:1646 */
break;
case 201:
-#line 2027 "awkgram.y" /* yacc.c:1646 */
+#line 2030 "awkgram.y" /* yacc.c:1646 */
{ yyerrok; }
-#line 4213 "awkgram.c" /* yacc.c:1646 */
+#line 4216 "awkgram.c" /* yacc.c:1646 */
break;
case 202:
-#line 2031 "awkgram.y" /* yacc.c:1646 */
+#line 2034 "awkgram.y" /* yacc.c:1646 */
{ (yyval) = (yyvsp[0]); yyerrok; }
-#line 4219 "awkgram.c" /* yacc.c:1646 */
+#line 4222 "awkgram.c" /* yacc.c:1646 */
break;
case 203:
-#line 2035 "awkgram.y" /* yacc.c:1646 */
+#line 2038 "awkgram.y" /* yacc.c:1646 */
{ yyerrok; }
-#line 4225 "awkgram.c" /* yacc.c:1646 */
+#line 4228 "awkgram.c" /* yacc.c:1646 */
break;
-#line 4229 "awkgram.c" /* yacc.c:1646 */
+#line 4232 "awkgram.c" /* yacc.c:1646 */
default: break;
}
/* User semantic actions sometimes alter yychar, and that requires
@@ -4453,7 +4456,7 @@ yyreturn:
#endif
return yyresult;
}
-#line 2037 "awkgram.y" /* yacc.c:1906 */
+#line 2040 "awkgram.y" /* yacc.c:1906 */
struct token {
@@ -6269,6 +6272,10 @@ retry:
if (c == '\r') /* allow MS-DOS files. bleah */
c = nextc(true);
if (c == '\n') {
+ if (do_posix)
+ fatal(_("POSIX does not allow physical newlines in string values"));
+ else if (do_lint)
+ lintwarn(_("backslash string continuation is not portable"));
sourceline++;
continue;
}
diff --git a/awkgram.y b/awkgram.y
index 70530d18..a3a51abd 100644
--- a/awkgram.y
+++ b/awkgram.y
@@ -1296,6 +1296,8 @@ output_redir
&& $3->lasti->opcode == Op_K_getline_redir
&& $3->lasti->redir_type == redirect_twoway)
yyerror(_("multistage two-way pipelines don't work"));
+ if (do_lint && $1->redir_type == redirect_output && $3->lasti->opcode == Op_concat)
+ lintwarn(_("concatenation as I/O `>' redirection target is ambiguous"));
$$ = list_prepend($3, $1);
}
;
@@ -1729,10 +1731,11 @@ non_post_simp_exp
}
| '(' exp r_paren
{
- if (do_pretty_print)
- $$ = list_append($2, bcalloc(Op_parens, 1, sourceline));
- else
- $$ = $2;
+ // Always include. Allows us to lint warn on
+ // print "foo" > "bar" 1
+ // but not warn on
+ // print "foo" > ("bar" 1)
+ $$ = list_append($2, bcalloc(Op_parens, 1, sourceline));
}
| LEX_BUILTIN '(' opt_fcall_expression_list r_paren
{
@@ -3849,6 +3852,10 @@ retry:
if (c == '\r') /* allow MS-DOS files. bleah */
c = nextc(true);
if (c == '\n') {
+ if (do_posix)
+ fatal(_("POSIX does not allow physical newlines in string values"));
+ else if (do_lint)
+ lintwarn(_("backslash string continuation is not portable"));
sourceline++;
continue;
}
diff --git a/custom.h b/custom.h
index ef330167..b4f8a46d 100644
--- a/custom.h
+++ b/custom.h
@@ -38,6 +38,14 @@
#include "vms/redirect.h"
#endif
+/* OpenVMS has some definitions in fp.h that should be in math.h */
+/* From John Malmberg, wb8tyw@qsl.net */
+#ifdef __VMS
+#include <fp.h>
+/* isnan () macro is broken */
+#undef isnan
+#endif
+
/* For QNX, based on submission from Michael Hunter, mphunter@qnx.com */
#ifdef __QNX__
#define GETPGRP_VOID 1
diff --git a/doc/ChangeLog b/doc/ChangeLog
index 20bb5182..95df0e67 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,18 @@
+2018-07-31 Arnold D. Robbins <arnold@skeeve.com>
+
+ * gawktexi.in (Scalar Constants): Document what happens with
+ physical newlines in strings, escaped and otherwise.
+
+2018-07-31 Arnold D. Robbins <arnold@skeeve.com>
+
+ * gawktexi.in (Two-way I/O): Fix some typos.
+ * gawkworkflow.texi (Configuring git): Correct some
+ command usages. Thanks to Antonio Columbo for the fix.
+
+2018-07-31 Ralph Corderoy <ralph@inputplus.co.uk>
+
+ * gawk.1: Avoid hyphenation in gawk email address.
+
2018-07-25 Arnold D. Robbins <arnold@skeeve.com>
* gawktexi.in (Two-way I/O): Add a nice example on buffering
diff --git a/doc/gawk.1 b/doc/gawk.1
index 0359b9d0..a2448695 100644
--- a/doc/gawk.1
+++ b/doc/gawk.1
@@ -4050,7 +4050,7 @@ and which ports are currently supported.
If you find a bug in
.IR gawk ,
please send electronic mail to
-.BR bug-gawk@gnu.org .
+.BR \%bug-gawk@gnu.org .
Please include your operating system and its revision, the version of
.I gawk
(from
diff --git a/doc/gawk.info b/doc/gawk.info
index f4764ac1..99065732 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -7669,6 +7669,55 @@ can be of any length, and they can contain any of the possible eight-bit
ASCII characters, including ASCII NUL (character code zero). Other
'awk' implementations may have difficulty with some character codes.
+ Some languages allow you to continue long strings across multiple
+lines by ending the line with a backslash. For example in C:
+
+ #include <stdio.h>
+
+ int main()
+ {
+ printf "hello, \
+ world\n");
+ return 0;
+ }
+
+In such a case, the C compiler removes both the backslash and the
+newline, producing a string as if it had been typed '"hello, world\n"'.
+This is useful when a single string needs to contain a large amount of
+text.
+
+ The POSIX standard says explicitly that newlines are not allowed
+inside string constants. And indeed, all 'awk' implementations report
+an error if you try to do so. For example:
+
+ $ gawk 'BEGIN { print "hello,
+ > world" }'
+ -| gawk: cmd. line:1: BEGIN print "hello,
+ -| gawk: cmd. line:1: ^ unterminated string
+ -| gawk: cmd. line:1: BEGIN print "hello,
+ -| gawk: cmd. line:1: ^ syntax error
+
+ Although POSIX doesn't define what happens if you use an escaped
+newline, as in the previous C example, all known versions of 'awk' allow
+you to do so. Unfortunately, what each one does with such a string
+varies. (d.c.) 'gawk', 'mawk', and the OpenSolaris POSIX 'awk' (*note
+Other Versions::) elide the backslash and newline, as in C:
+
+ $ gawk 'BEGIN { print "hello, \
+ > world" }'
+ -| hello, world
+
+ Brian Kernighan's 'awk' and Busybox 'awk' remove the backslash but
+leave the newline intact, as part of the string:
+
+ $ nawk 'BEGIN { print "hello, \
+ > world" }'
+ -| hello,
+ -| world
+
+ In POSIX mode (*note Options::), 'gawk' does not allow escaped
+newlines. Otherwise, it behaves as just described.
+
---------- Footnotes ----------
(1) The internal representation of all numbers, including integers,
@@ -23480,7 +23529,7 @@ and infinity values. The solution implemented in 'gawk' is as follows:
'gawk' ignores case in the four special values. Thus, '+nan' and
'+NaN' are the same.
- Besides handling imput, 'gawk' also needs to print "correct" values
+ Besides handling input, 'gawk' also needs to print "correct" values
on output when a value is either NaN or infinity. Starting with version
4.2.2, for such values 'gawk' prints one of the four strings just
described: '+inf', '-inf', '+nan', or '-nan'. Similarly, in POSIX mode,
@@ -33871,6 +33920,7 @@ Index
* dark corner, regexp constants, as arguments to user-defined functions: Standard Regexp Constants.
(line 43)
* dark corner, split() function: String Functions. (line 364)
+* dark corner, string continuation: Scalar Constants. (line 53)
* dark corner, strings, storing: gawk split records. (line 82)
* dark corner, value of ARGV[0]: Auto-set. (line 39)
* dark corner, ^, in FS: Regexp Field Splitting.
@@ -34088,6 +34138,7 @@ Index
* differences in awk and gawk, split() function: String Functions.
(line 351)
* differences in awk and gawk, strings: Scalar Constants. (line 20)
+* differences in awk and gawk, strings <1>: Scalar Constants. (line 53)
* differences in awk and gawk, strings, storing: gawk split records.
(line 76)
* differences in awk and gawk, SYMTAB variable: Auto-set. (line 331)
@@ -35802,6 +35853,7 @@ Index
* string-matching operators: Regexp Usage. (line 19)
* string-translation functions: I18N Functions. (line 6)
* strings splitting, example: String Functions. (line 337)
+* strings, continuation across lines: Scalar Constants. (line 53)
* strings, converting: Strings And Numbers. (line 6)
* strings, converting <1>: Bitwise Functions. (line 109)
* strings, converting letter case: String Functions. (line 526)
@@ -36238,436 +36290,436 @@ Node: Expressions332646
Node: Values333834
Node: Constants334512
Node: Scalar Constants335203
-Ref: Scalar Constants-Footnote-1336067
-Node: Nondecimal-numbers336317
-Node: Regexp Constants339318
-Node: Using Constant Regexps339844
-Node: Standard Regexp Constants340466
-Node: Strong Regexp Constants343654
-Node: Variables346612
-Node: Using Variables347269
-Node: Assignment Options349179
-Node: Conversion351052
-Node: Strings And Numbers351576
-Ref: Strings And Numbers-Footnote-1354639
-Node: Locale influences conversions354748
-Ref: table-locale-affects357506
-Node: All Operators358124
-Node: Arithmetic Ops358753
-Node: Concatenation361259
-Ref: Concatenation-Footnote-1364106
-Node: Assignment Ops364213
-Ref: table-assign-ops369204
-Node: Increment Ops370517
-Node: Truth Values and Conditions373977
-Node: Truth Values375051
-Node: Typing and Comparison376099
-Node: Variable Typing376919
-Ref: Variable Typing-Footnote-1383382
-Ref: Variable Typing-Footnote-2383454
-Node: Comparison Operators383531
-Ref: table-relational-ops383950
-Node: POSIX String Comparison387445
-Ref: POSIX String Comparison-Footnote-1389140
-Ref: POSIX String Comparison-Footnote-2389279
-Node: Boolean Ops389363
-Ref: Boolean Ops-Footnote-1393845
-Node: Conditional Exp393937
-Node: Function Calls395673
-Node: Precedence399550
-Node: Locales403209
-Node: Expressions Summary404841
-Node: Patterns and Actions407414
-Node: Pattern Overview408534
-Node: Regexp Patterns410211
-Node: Expression Patterns410753
-Node: Ranges414534
-Node: BEGIN/END417642
-Node: Using BEGIN/END418403
-Ref: Using BEGIN/END-Footnote-1421139
-Node: I/O And BEGIN/END421245
-Node: BEGINFILE/ENDFILE423559
-Node: Empty426472
-Node: Using Shell Variables426789
-Node: Action Overview429063
-Node: Statements431388
-Node: If Statement433236
-Node: While Statement434731
-Node: Do Statement436759
-Node: For Statement437907
-Node: Switch Statement441078
-Node: Break Statement443464
-Node: Continue Statement445556
-Node: Next Statement447383
-Node: Nextfile Statement449766
-Node: Exit Statement452418
-Node: Built-in Variables454821
-Node: User-modified455954
-Node: Auto-set463721
-Ref: Auto-set-Footnote-1480023
-Ref: Auto-set-Footnote-2480229
-Node: ARGC and ARGV480285
-Node: Pattern Action Summary484498
-Node: Arrays486928
-Node: Array Basics488257
-Node: Array Intro489101
-Ref: figure-array-elements491076
-Ref: Array Intro-Footnote-1493780
-Node: Reference to Elements493908
-Node: Assigning Elements496372
-Node: Array Example496863
-Node: Scanning an Array498622
-Node: Controlling Scanning501644
-Ref: Controlling Scanning-Footnote-1507043
-Node: Numeric Array Subscripts507359
-Node: Uninitialized Subscripts509543
-Node: Delete511162
-Ref: Delete-Footnote-1513914
-Node: Multidimensional513971
-Node: Multiscanning517066
-Node: Arrays of Arrays518657
-Node: Arrays Summary523424
-Node: Functions525517
-Node: Built-in526555
-Node: Calling Built-in527636
-Node: Numeric Functions529632
-Ref: Numeric Functions-Footnote-1533660
-Ref: Numeric Functions-Footnote-2534017
-Ref: Numeric Functions-Footnote-3534065
-Node: String Functions534337
-Ref: String Functions-Footnote-1558046
-Ref: String Functions-Footnote-2558174
-Ref: String Functions-Footnote-3558422
-Node: Gory Details558509
-Ref: table-sub-escapes560300
-Ref: table-sub-proposed561819
-Ref: table-posix-sub563182
-Ref: table-gensub-escapes564723
-Ref: Gory Details-Footnote-1565546
-Node: I/O Functions565700
-Ref: table-system-return-values572168
-Ref: I/O Functions-Footnote-1574148
-Ref: I/O Functions-Footnote-2574296
-Node: Time Functions574416
-Ref: Time Functions-Footnote-1585087
-Ref: Time Functions-Footnote-2585155
-Ref: Time Functions-Footnote-3585313
-Ref: Time Functions-Footnote-4585424
-Ref: Time Functions-Footnote-5585536
-Ref: Time Functions-Footnote-6585763
-Node: Bitwise Functions586029
-Ref: table-bitwise-ops586623
-Ref: Bitwise Functions-Footnote-1592686
-Ref: Bitwise Functions-Footnote-2592859
-Node: Type Functions593050
-Node: I18N Functions595801
-Node: User-defined597452
-Node: Definition Syntax598257
-Ref: Definition Syntax-Footnote-1603944
-Node: Function Example604015
-Ref: Function Example-Footnote-1606937
-Node: Function Caveats606959
-Node: Calling A Function607477
-Node: Variable Scope608435
-Node: Pass By Value/Reference611429
-Node: Return Statement614928
-Node: Dynamic Typing617907
-Node: Indirect Calls618837
-Ref: Indirect Calls-Footnote-1629089
-Node: Functions Summary629217
-Node: Library Functions631922
-Ref: Library Functions-Footnote-1635529
-Ref: Library Functions-Footnote-2635672
-Node: Library Names635843
-Ref: Library Names-Footnote-1639303
-Ref: Library Names-Footnote-2639526
-Node: General Functions639612
-Node: Strtonum Function640715
-Node: Assert Function643737
-Node: Round Function647063
-Node: Cliff Random Function648603
-Node: Ordinal Functions649619
-Ref: Ordinal Functions-Footnote-1652682
-Ref: Ordinal Functions-Footnote-2652934
-Node: Join Function653144
-Ref: Join Function-Footnote-1654914
-Node: Getlocaltime Function655114
-Node: Readfile Function658856
-Node: Shell Quoting660833
-Node: Data File Management662234
-Node: Filetrans Function662866
-Node: Rewind Function666962
-Node: File Checking668872
-Ref: File Checking-Footnote-1670206
-Node: Empty Files670407
-Node: Ignoring Assigns672386
-Node: Getopt Function673936
-Ref: Getopt Function-Footnote-1685405
-Node: Passwd Functions685605
-Ref: Passwd Functions-Footnote-1694444
-Node: Group Functions694532
-Ref: Group Functions-Footnote-1702430
-Node: Walking Arrays702637
-Node: Library Functions Summary705645
-Node: Library Exercises707051
-Node: Sample Programs707516
-Node: Running Examples708286
-Node: Clones709014
-Node: Cut Program710238
-Node: Egrep Program720167
-Ref: Egrep Program-Footnote-1727679
-Node: Id Program727789
-Node: Split Program731469
-Ref: Split Program-Footnote-1734927
-Node: Tee Program735056
-Node: Uniq Program737846
-Node: Wc Program745272
-Ref: Wc Program-Footnote-1749527
-Node: Miscellaneous Programs749621
-Node: Dupword Program750834
-Node: Alarm Program752864
-Node: Translate Program757719
-Ref: Translate Program-Footnote-1762284
-Node: Labels Program762554
-Ref: Labels Program-Footnote-1765905
-Node: Word Sorting765989
-Node: History Sorting770061
-Node: Extract Program771896
-Node: Simple Sed779950
-Node: Igawk Program783024
-Ref: Igawk Program-Footnote-1797355
-Ref: Igawk Program-Footnote-2797557
-Ref: Igawk Program-Footnote-3797679
-Node: Anagram Program797794
-Node: Signature Program800856
-Node: Programs Summary802103
-Node: Programs Exercises803317
-Ref: Programs Exercises-Footnote-1807446
-Node: Advanced Features807537
-Node: Nondecimal Data809527
-Node: Array Sorting811118
-Node: Controlling Array Traversal811818
-Ref: Controlling Array Traversal-Footnote-1820186
-Node: Array Sorting Functions820304
-Ref: Array Sorting Functions-Footnote-1825395
-Node: Two-way I/O825591
-Ref: Two-way I/O-Footnote-1833311
-Ref: Two-way I/O-Footnote-2833498
-Node: TCP/IP Networking833580
-Node: Profiling836698
-Ref: Profiling-Footnote-1845370
-Node: Advanced Features Summary845693
-Node: Internationalization847537
-Node: I18N and L10N849017
-Node: Explaining gettext849704
-Ref: Explaining gettext-Footnote-1855596
-Ref: Explaining gettext-Footnote-2855781
-Node: Programmer i18n855946
-Ref: Programmer i18n-Footnote-1860895
-Node: Translator i18n860944
-Node: String Extraction861738
-Ref: String Extraction-Footnote-1862870
-Node: Printf Ordering862956
-Ref: Printf Ordering-Footnote-1865742
-Node: I18N Portability865806
-Ref: I18N Portability-Footnote-1868262
-Node: I18N Example868325
-Ref: I18N Example-Footnote-1871131
-Node: Gawk I18N871204
-Node: I18N Summary871849
-Node: Debugger873190
-Node: Debugging874213
-Node: Debugging Concepts874654
-Node: Debugging Terms876463
-Node: Awk Debugging879038
-Node: Sample Debugging Session879944
-Node: Debugger Invocation880478
-Node: Finding The Bug881864
-Node: List of Debugger Commands888342
-Node: Breakpoint Control889675
-Node: Debugger Execution Control893369
-Node: Viewing And Changing Data896731
-Node: Execution Stack900105
-Node: Debugger Info901742
-Node: Miscellaneous Debugger Commands905813
-Node: Readline Support910875
-Node: Limitations911771
-Node: Debugging Summary913880
-Node: Arbitrary Precision Arithmetic915159
-Node: Computer Arithmetic916644
-Ref: table-numeric-ranges920410
-Ref: table-floating-point-ranges920903
-Ref: Computer Arithmetic-Footnote-1921561
-Node: Math Definitions921618
-Ref: table-ieee-formats924934
-Ref: Math Definitions-Footnote-1925537
-Node: MPFR features925642
-Node: FP Math Caution927360
-Ref: FP Math Caution-Footnote-1928432
-Node: Inexactness of computations928801
-Node: Inexact representation929761
-Node: Comparing FP Values931121
-Node: Errors accumulate932203
-Node: Getting Accuracy933636
-Node: Try To Round936346
-Node: Setting precision937245
-Ref: table-predefined-precision-strings937942
-Node: Setting the rounding mode939772
-Ref: table-gawk-rounding-modes940146
-Ref: Setting the rounding mode-Footnote-1944077
-Node: Arbitrary Precision Integers944256
-Ref: Arbitrary Precision Integers-Footnote-1947431
-Node: Checking for MPFR947580
-Node: POSIX Floating Point Problems949054
-Ref: POSIX Floating Point Problems-Footnote-1953339
-Node: Floating point summary953377
-Node: Dynamic Extensions955567
-Node: Extension Intro957120
-Node: Plugin License958386
-Node: Extension Mechanism Outline959183
-Ref: figure-load-extension959622
-Ref: figure-register-new-function961187
-Ref: figure-call-new-function962279
-Node: Extension API Description964341
-Node: Extension API Functions Introduction965983
-Node: General Data Types971523
-Ref: General Data Types-Footnote-1979884
-Node: Memory Allocation Functions980183
-Ref: Memory Allocation Functions-Footnote-1984393
-Node: Constructor Functions984492
-Node: Registration Functions988078
-Node: Extension Functions988763
-Node: Exit Callback Functions993978
-Node: Extension Version String995228
-Node: Input Parsers995891
-Node: Output Wrappers1008612
-Node: Two-way processors1013124
-Node: Printing Messages1015389
-Ref: Printing Messages-Footnote-11016560
-Node: Updating ERRNO1016713
-Node: Requesting Values1017452
-Ref: table-value-types-returned1018189
-Node: Accessing Parameters1019125
-Node: Symbol Table Access1020360
-Node: Symbol table by name1020872
-Node: Symbol table by cookie1022661
-Ref: Symbol table by cookie-Footnote-11026846
-Node: Cached values1026910
-Ref: Cached values-Footnote-11030446
-Node: Array Manipulation1030599
-Ref: Array Manipulation-Footnote-11031690
-Node: Array Data Types1031727
-Ref: Array Data Types-Footnote-11034385
-Node: Array Functions1034477
-Node: Flattening Arrays1038975
-Node: Creating Arrays1045951
-Node: Redirection API1050718
-Node: Extension API Variables1053551
-Node: Extension Versioning1054262
-Ref: gawk-api-version1054691
-Node: Extension GMP/MPFR Versioning1056422
-Node: Extension API Informational Variables1058050
-Node: Extension API Boilerplate1059123
-Node: Changes from API V11063097
-Node: Finding Extensions1064669
-Node: Extension Example1065228
-Node: Internal File Description1066026
-Node: Internal File Ops1070106
-Ref: Internal File Ops-Footnote-11081456
-Node: Using Internal File Ops1081596
-Ref: Using Internal File Ops-Footnote-11083979
-Node: Extension Samples1084253
-Node: Extension Sample File Functions1085782
-Node: Extension Sample Fnmatch1093431
-Node: Extension Sample Fork1094918
-Node: Extension Sample Inplace1096136
-Node: Extension Sample Ord1099353
-Node: Extension Sample Readdir1100189
-Ref: table-readdir-file-types1101078
-Node: Extension Sample Revout1101883
-Node: Extension Sample Rev2way1102472
-Node: Extension Sample Read write array1103212
-Node: Extension Sample Readfile1105154
-Node: Extension Sample Time1106249
-Node: Extension Sample API Tests1107597
-Node: gawkextlib1108089
-Node: Extension summary1111007
-Node: Extension Exercises1114709
-Node: Language History1116207
-Node: V7/SVR3.11117863
-Node: SVR41120015
-Node: POSIX1121449
-Node: BTL1122829
-Node: POSIX/GNU1123558
-Node: Feature History1129336
-Node: Common Extensions1145195
-Node: Ranges and Locales1146478
-Ref: Ranges and Locales-Footnote-11151094
-Ref: Ranges and Locales-Footnote-21151121
-Ref: Ranges and Locales-Footnote-31151356
-Node: Contributors1151577
-Node: History summary1157522
-Node: Installation1158902
-Node: Gawk Distribution1159846
-Node: Getting1160330
-Node: Extracting1161293
-Node: Distribution contents1162931
-Node: Unix Installation1169411
-Node: Quick Installation1170093
-Node: Shell Startup Files1172507
-Node: Additional Configuration Options1173596
-Node: Configuration Philosophy1175761
-Node: Non-Unix Installation1178130
-Node: PC Installation1178590
-Node: PC Binary Installation1179428
-Node: PC Compiling1179863
-Node: PC Using1180980
-Node: Cygwin1184195
-Node: MSYS1185294
-Node: VMS Installation1185795
-Node: VMS Compilation1186586
-Ref: VMS Compilation-Footnote-11187815
-Node: VMS Dynamic Extensions1187873
-Node: VMS Installation Details1189558
-Node: VMS Running1191811
-Node: VMS GNV1196090
-Node: VMS Old Gawk1196825
-Node: Bugs1197296
-Node: Bug address1197959
-Node: Usenet1200751
-Node: Maintainers1201528
-Node: Other Versions1202789
-Node: Installation summary1209551
-Node: Notes1210753
-Node: Compatibility Mode1211618
-Node: Additions1212400
-Node: Accessing The Source1213325
-Node: Adding Code1214762
-Node: New Ports1220981
-Node: Derived Files1225469
-Ref: Derived Files-Footnote-11231115
-Ref: Derived Files-Footnote-21231150
-Ref: Derived Files-Footnote-31231748
-Node: Future Extensions1231862
-Node: Implementation Limitations1232520
-Node: Extension Design1233703
-Node: Old Extension Problems1234857
-Ref: Old Extension Problems-Footnote-11236375
-Node: Extension New Mechanism Goals1236432
-Ref: Extension New Mechanism Goals-Footnote-11239796
-Node: Extension Other Design Decisions1239985
-Node: Extension Future Growth1242098
-Node: Old Extension Mechanism1242934
-Node: Notes summary1244697
-Node: Basic Concepts1245879
-Node: Basic High Level1246560
-Ref: figure-general-flow1246842
-Ref: figure-process-flow1247527
-Ref: Basic High Level-Footnote-11250828
-Node: Basic Data Typing1251013
-Node: Glossary1254341
-Node: Copying1286179
-Node: GNU Free Documentation License1323722
-Node: Index1348842
+Ref: Scalar Constants-Footnote-1337726
+Node: Nondecimal-numbers337976
+Node: Regexp Constants340977
+Node: Using Constant Regexps341503
+Node: Standard Regexp Constants342125
+Node: Strong Regexp Constants345313
+Node: Variables348271
+Node: Using Variables348928
+Node: Assignment Options350838
+Node: Conversion352711
+Node: Strings And Numbers353235
+Ref: Strings And Numbers-Footnote-1356298
+Node: Locale influences conversions356407
+Ref: table-locale-affects359165
+Node: All Operators359783
+Node: Arithmetic Ops360412
+Node: Concatenation362918
+Ref: Concatenation-Footnote-1365765
+Node: Assignment Ops365872
+Ref: table-assign-ops370863
+Node: Increment Ops372176
+Node: Truth Values and Conditions375636
+Node: Truth Values376710
+Node: Typing and Comparison377758
+Node: Variable Typing378578
+Ref: Variable Typing-Footnote-1385041
+Ref: Variable Typing-Footnote-2385113
+Node: Comparison Operators385190
+Ref: table-relational-ops385609
+Node: POSIX String Comparison389104
+Ref: POSIX String Comparison-Footnote-1390799
+Ref: POSIX String Comparison-Footnote-2390938
+Node: Boolean Ops391022
+Ref: Boolean Ops-Footnote-1395504
+Node: Conditional Exp395596
+Node: Function Calls397332
+Node: Precedence401209
+Node: Locales404868
+Node: Expressions Summary406500
+Node: Patterns and Actions409073
+Node: Pattern Overview410193
+Node: Regexp Patterns411870
+Node: Expression Patterns412412
+Node: Ranges416193
+Node: BEGIN/END419301
+Node: Using BEGIN/END420062
+Ref: Using BEGIN/END-Footnote-1422798
+Node: I/O And BEGIN/END422904
+Node: BEGINFILE/ENDFILE425218
+Node: Empty428131
+Node: Using Shell Variables428448
+Node: Action Overview430722
+Node: Statements433047
+Node: If Statement434895
+Node: While Statement436390
+Node: Do Statement438418
+Node: For Statement439566
+Node: Switch Statement442737
+Node: Break Statement445123
+Node: Continue Statement447215
+Node: Next Statement449042
+Node: Nextfile Statement451425
+Node: Exit Statement454077
+Node: Built-in Variables456480
+Node: User-modified457613
+Node: Auto-set465380
+Ref: Auto-set-Footnote-1481682
+Ref: Auto-set-Footnote-2481888
+Node: ARGC and ARGV481944
+Node: Pattern Action Summary486157
+Node: Arrays488587
+Node: Array Basics489916
+Node: Array Intro490760
+Ref: figure-array-elements492735
+Ref: Array Intro-Footnote-1495439
+Node: Reference to Elements495567
+Node: Assigning Elements498031
+Node: Array Example498522
+Node: Scanning an Array500281
+Node: Controlling Scanning503303
+Ref: Controlling Scanning-Footnote-1508702
+Node: Numeric Array Subscripts509018
+Node: Uninitialized Subscripts511202
+Node: Delete512821
+Ref: Delete-Footnote-1515573
+Node: Multidimensional515630
+Node: Multiscanning518725
+Node: Arrays of Arrays520316
+Node: Arrays Summary525083
+Node: Functions527176
+Node: Built-in528214
+Node: Calling Built-in529295
+Node: Numeric Functions531291
+Ref: Numeric Functions-Footnote-1535319
+Ref: Numeric Functions-Footnote-2535676
+Ref: Numeric Functions-Footnote-3535724
+Node: String Functions535996
+Ref: String Functions-Footnote-1559705
+Ref: String Functions-Footnote-2559833
+Ref: String Functions-Footnote-3560081
+Node: Gory Details560168
+Ref: table-sub-escapes561959
+Ref: table-sub-proposed563478
+Ref: table-posix-sub564841
+Ref: table-gensub-escapes566382
+Ref: Gory Details-Footnote-1567205
+Node: I/O Functions567359
+Ref: table-system-return-values573827
+Ref: I/O Functions-Footnote-1575807
+Ref: I/O Functions-Footnote-2575955
+Node: Time Functions576075
+Ref: Time Functions-Footnote-1586746
+Ref: Time Functions-Footnote-2586814
+Ref: Time Functions-Footnote-3586972
+Ref: Time Functions-Footnote-4587083
+Ref: Time Functions-Footnote-5587195
+Ref: Time Functions-Footnote-6587422
+Node: Bitwise Functions587688
+Ref: table-bitwise-ops588282
+Ref: Bitwise Functions-Footnote-1594345
+Ref: Bitwise Functions-Footnote-2594518
+Node: Type Functions594709
+Node: I18N Functions597460
+Node: User-defined599111
+Node: Definition Syntax599916
+Ref: Definition Syntax-Footnote-1605603
+Node: Function Example605674
+Ref: Function Example-Footnote-1608596
+Node: Function Caveats608618
+Node: Calling A Function609136
+Node: Variable Scope610094
+Node: Pass By Value/Reference613088
+Node: Return Statement616587
+Node: Dynamic Typing619566
+Node: Indirect Calls620496
+Ref: Indirect Calls-Footnote-1630748
+Node: Functions Summary630876
+Node: Library Functions633581
+Ref: Library Functions-Footnote-1637188
+Ref: Library Functions-Footnote-2637331
+Node: Library Names637502
+Ref: Library Names-Footnote-1640962
+Ref: Library Names-Footnote-2641185
+Node: General Functions641271
+Node: Strtonum Function642374
+Node: Assert Function645396
+Node: Round Function648722
+Node: Cliff Random Function650262
+Node: Ordinal Functions651278
+Ref: Ordinal Functions-Footnote-1654341
+Ref: Ordinal Functions-Footnote-2654593
+Node: Join Function654803
+Ref: Join Function-Footnote-1656573
+Node: Getlocaltime Function656773
+Node: Readfile Function660515
+Node: Shell Quoting662492
+Node: Data File Management663893
+Node: Filetrans Function664525
+Node: Rewind Function668621
+Node: File Checking670531
+Ref: File Checking-Footnote-1671865
+Node: Empty Files672066
+Node: Ignoring Assigns674045
+Node: Getopt Function675595
+Ref: Getopt Function-Footnote-1687064
+Node: Passwd Functions687264
+Ref: Passwd Functions-Footnote-1696103
+Node: Group Functions696191
+Ref: Group Functions-Footnote-1704089
+Node: Walking Arrays704296
+Node: Library Functions Summary707304
+Node: Library Exercises708710
+Node: Sample Programs709175
+Node: Running Examples709945
+Node: Clones710673
+Node: Cut Program711897
+Node: Egrep Program721826
+Ref: Egrep Program-Footnote-1729338
+Node: Id Program729448
+Node: Split Program733128
+Ref: Split Program-Footnote-1736586
+Node: Tee Program736715
+Node: Uniq Program739505
+Node: Wc Program746931
+Ref: Wc Program-Footnote-1751186
+Node: Miscellaneous Programs751280
+Node: Dupword Program752493
+Node: Alarm Program754523
+Node: Translate Program759378
+Ref: Translate Program-Footnote-1763943
+Node: Labels Program764213
+Ref: Labels Program-Footnote-1767564
+Node: Word Sorting767648
+Node: History Sorting771720
+Node: Extract Program773555
+Node: Simple Sed781609
+Node: Igawk Program784683
+Ref: Igawk Program-Footnote-1799014
+Ref: Igawk Program-Footnote-2799216
+Ref: Igawk Program-Footnote-3799338
+Node: Anagram Program799453
+Node: Signature Program802515
+Node: Programs Summary803762
+Node: Programs Exercises804976
+Ref: Programs Exercises-Footnote-1809105
+Node: Advanced Features809196
+Node: Nondecimal Data811186
+Node: Array Sorting812777
+Node: Controlling Array Traversal813477
+Ref: Controlling Array Traversal-Footnote-1821845
+Node: Array Sorting Functions821963
+Ref: Array Sorting Functions-Footnote-1827054
+Node: Two-way I/O827250
+Ref: Two-way I/O-Footnote-1834970
+Ref: Two-way I/O-Footnote-2835157
+Node: TCP/IP Networking835239
+Node: Profiling838357
+Ref: Profiling-Footnote-1847029
+Node: Advanced Features Summary847352
+Node: Internationalization849196
+Node: I18N and L10N850676
+Node: Explaining gettext851363
+Ref: Explaining gettext-Footnote-1857255
+Ref: Explaining gettext-Footnote-2857440
+Node: Programmer i18n857605
+Ref: Programmer i18n-Footnote-1862554
+Node: Translator i18n862603
+Node: String Extraction863397
+Ref: String Extraction-Footnote-1864529
+Node: Printf Ordering864615
+Ref: Printf Ordering-Footnote-1867401
+Node: I18N Portability867465
+Ref: I18N Portability-Footnote-1869921
+Node: I18N Example869984
+Ref: I18N Example-Footnote-1872790
+Node: Gawk I18N872863
+Node: I18N Summary873508
+Node: Debugger874849
+Node: Debugging875872
+Node: Debugging Concepts876313
+Node: Debugging Terms878122
+Node: Awk Debugging880697
+Node: Sample Debugging Session881603
+Node: Debugger Invocation882137
+Node: Finding The Bug883523
+Node: List of Debugger Commands890001
+Node: Breakpoint Control891334
+Node: Debugger Execution Control895028
+Node: Viewing And Changing Data898390
+Node: Execution Stack901764
+Node: Debugger Info903401
+Node: Miscellaneous Debugger Commands907472
+Node: Readline Support912534
+Node: Limitations913430
+Node: Debugging Summary915539
+Node: Arbitrary Precision Arithmetic916818
+Node: Computer Arithmetic918303
+Ref: table-numeric-ranges922069
+Ref: table-floating-point-ranges922562
+Ref: Computer Arithmetic-Footnote-1923220
+Node: Math Definitions923277
+Ref: table-ieee-formats926593
+Ref: Math Definitions-Footnote-1927196
+Node: MPFR features927301
+Node: FP Math Caution929019
+Ref: FP Math Caution-Footnote-1930091
+Node: Inexactness of computations930460
+Node: Inexact representation931420
+Node: Comparing FP Values932780
+Node: Errors accumulate933862
+Node: Getting Accuracy935295
+Node: Try To Round938005
+Node: Setting precision938904
+Ref: table-predefined-precision-strings939601
+Node: Setting the rounding mode941431
+Ref: table-gawk-rounding-modes941805
+Ref: Setting the rounding mode-Footnote-1945736
+Node: Arbitrary Precision Integers945915
+Ref: Arbitrary Precision Integers-Footnote-1949090
+Node: Checking for MPFR949239
+Node: POSIX Floating Point Problems950713
+Ref: POSIX Floating Point Problems-Footnote-1954998
+Node: Floating point summary955036
+Node: Dynamic Extensions957226
+Node: Extension Intro958779
+Node: Plugin License960045
+Node: Extension Mechanism Outline960842
+Ref: figure-load-extension961281
+Ref: figure-register-new-function962846
+Ref: figure-call-new-function963938
+Node: Extension API Description966000
+Node: Extension API Functions Introduction967642
+Node: General Data Types973182
+Ref: General Data Types-Footnote-1981543
+Node: Memory Allocation Functions981842
+Ref: Memory Allocation Functions-Footnote-1986052
+Node: Constructor Functions986151
+Node: Registration Functions989737
+Node: Extension Functions990422
+Node: Exit Callback Functions995637
+Node: Extension Version String996887
+Node: Input Parsers997550
+Node: Output Wrappers1010271
+Node: Two-way processors1014783
+Node: Printing Messages1017048
+Ref: Printing Messages-Footnote-11018219
+Node: Updating ERRNO1018372
+Node: Requesting Values1019111
+Ref: table-value-types-returned1019848
+Node: Accessing Parameters1020784
+Node: Symbol Table Access1022019
+Node: Symbol table by name1022531
+Node: Symbol table by cookie1024320
+Ref: Symbol table by cookie-Footnote-11028505
+Node: Cached values1028569
+Ref: Cached values-Footnote-11032105
+Node: Array Manipulation1032258
+Ref: Array Manipulation-Footnote-11033349
+Node: Array Data Types1033386
+Ref: Array Data Types-Footnote-11036044
+Node: Array Functions1036136
+Node: Flattening Arrays1040634
+Node: Creating Arrays1047610
+Node: Redirection API1052377
+Node: Extension API Variables1055210
+Node: Extension Versioning1055921
+Ref: gawk-api-version1056350
+Node: Extension GMP/MPFR Versioning1058081
+Node: Extension API Informational Variables1059709
+Node: Extension API Boilerplate1060782
+Node: Changes from API V11064756
+Node: Finding Extensions1066328
+Node: Extension Example1066887
+Node: Internal File Description1067685
+Node: Internal File Ops1071765
+Ref: Internal File Ops-Footnote-11083115
+Node: Using Internal File Ops1083255
+Ref: Using Internal File Ops-Footnote-11085638
+Node: Extension Samples1085912
+Node: Extension Sample File Functions1087441
+Node: Extension Sample Fnmatch1095090
+Node: Extension Sample Fork1096577
+Node: Extension Sample Inplace1097795
+Node: Extension Sample Ord1101012
+Node: Extension Sample Readdir1101848
+Ref: table-readdir-file-types1102737
+Node: Extension Sample Revout1103542
+Node: Extension Sample Rev2way1104131
+Node: Extension Sample Read write array1104871
+Node: Extension Sample Readfile1106813
+Node: Extension Sample Time1107908
+Node: Extension Sample API Tests1109256
+Node: gawkextlib1109748
+Node: Extension summary1112666
+Node: Extension Exercises1116368
+Node: Language History1117866
+Node: V7/SVR3.11119522
+Node: SVR41121674
+Node: POSIX1123108
+Node: BTL1124488
+Node: POSIX/GNU1125217
+Node: Feature History1130995
+Node: Common Extensions1146854
+Node: Ranges and Locales1148137
+Ref: Ranges and Locales-Footnote-11152753
+Ref: Ranges and Locales-Footnote-21152780
+Ref: Ranges and Locales-Footnote-31153015
+Node: Contributors1153236
+Node: History summary1159181
+Node: Installation1160561
+Node: Gawk Distribution1161505
+Node: Getting1161989
+Node: Extracting1162952
+Node: Distribution contents1164590
+Node: Unix Installation1171070
+Node: Quick Installation1171752
+Node: Shell Startup Files1174166
+Node: Additional Configuration Options1175255
+Node: Configuration Philosophy1177420
+Node: Non-Unix Installation1179789
+Node: PC Installation1180249
+Node: PC Binary Installation1181087
+Node: PC Compiling1181522
+Node: PC Using1182639
+Node: Cygwin1185854
+Node: MSYS1186953
+Node: VMS Installation1187454
+Node: VMS Compilation1188245
+Ref: VMS Compilation-Footnote-11189474
+Node: VMS Dynamic Extensions1189532
+Node: VMS Installation Details1191217
+Node: VMS Running1193470
+Node: VMS GNV1197749
+Node: VMS Old Gawk1198484
+Node: Bugs1198955
+Node: Bug address1199618
+Node: Usenet1202410
+Node: Maintainers1203187
+Node: Other Versions1204448
+Node: Installation summary1211210
+Node: Notes1212412
+Node: Compatibility Mode1213277
+Node: Additions1214059
+Node: Accessing The Source1214984
+Node: Adding Code1216421
+Node: New Ports1222640
+Node: Derived Files1227128
+Ref: Derived Files-Footnote-11232774
+Ref: Derived Files-Footnote-21232809
+Ref: Derived Files-Footnote-31233407
+Node: Future Extensions1233521
+Node: Implementation Limitations1234179
+Node: Extension Design1235362
+Node: Old Extension Problems1236516
+Ref: Old Extension Problems-Footnote-11238034
+Node: Extension New Mechanism Goals1238091
+Ref: Extension New Mechanism Goals-Footnote-11241455
+Node: Extension Other Design Decisions1241644
+Node: Extension Future Growth1243757
+Node: Old Extension Mechanism1244593
+Node: Notes summary1246356
+Node: Basic Concepts1247538
+Node: Basic High Level1248219
+Ref: figure-general-flow1248501
+Ref: figure-process-flow1249186
+Ref: Basic High Level-Footnote-11252487
+Node: Basic Data Typing1252672
+Node: Glossary1256000
+Node: Copying1287838
+Node: GNU Free Documentation License1325381
+Node: Index1350501

End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index 2817777d..97f44bfc 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -11025,6 +11025,69 @@ eight-bit ASCII characters, including ASCII @sc{nul} (character code zero).
Other @command{awk}
implementations may have difficulty with some character codes.
+Some languages allow you to continue long strings across
+multiple lines by ending the line with a backslash. For example in C:
+
+@example
+#include <stdio.h>
+
+int main()
+@{
+ printf "hello, \
+world\n");
+ return 0;
+@}
+@end example
+
+@noindent
+In such a case, the C compiler removes both the backslash and the newline,
+producing a string as if it had been typed @samp{"hello, world\n"}.
+This is useful when a single string needs to contain a large amount of text.
+
+The POSIX standard says explicitly that newlines are not allowed inside string
+constants. And indeed, all @command{awk} implementations report an error
+if you try to do so. For example:
+
+@example
+$ @kbd{gawk 'BEGIN @{ print "hello, }
+> @kbd{world" @}'}
+@print{} gawk: cmd. line:1: BEGIN { print "hello,
+@print{} gawk: cmd. line:1: ^ unterminated string
+@print{} gawk: cmd. line:1: BEGIN { print "hello,
+@print{} gawk: cmd. line:1: ^ syntax error
+@end example
+
+@cindex dark corner, string continuation
+@cindex strings, continuation across lines
+@cindex differences in @command{awk} and @command{gawk}, strings
+Although POSIX doesn't define what happens if you use an escaped
+newline, as in the previous C example, all known versions of
+@command{awk} allow you to do so. Unfortunately, what each one
+does with such a string varies. @value{DARKCORNER} @command{gawk},
+@command{mawk}, and the OpenSolaris POSIX @command{awk}
+(@pxref{Other Versions}) elide the backslash and newline, as in C:
+
+@example
+$ @kbd{gawk 'BEGIN @{ print "hello, \}
+> @kbd{world" @}'}
+@print{} hello, world
+@end example
+
+Brian Kernighan's @command{awk} and Busybox @command{awk}
+remove the backslash but leave the newline
+intact, as part of the string:
+
+@example
+$ @kbd{nawk 'BEGIN @{ print "hello, \}
+> @kbd{world" @}'}
+@print{} hello,
+@print{} world
+@end example
+
+In POSIX mode (@pxref{Options}), @command{gawk} does not
+allow escaped newlines. Otherwise, it behaves as
+just described.
+
@node Nondecimal-numbers
@subsubsection Octal and Hexadecimal Numbers
@cindex octal numbers
@@ -32700,9 +32763,9 @@ $ @kbd{echo 0xDeadBeef | gawk '@{ print $1 + 0 @}'}
Thus, @samp{+nan} and @samp{+NaN} are the same.
@end itemize
-Besides handling imput, @command{gawk} also needs to print ``correct'' values on
-output when a value is either NaN or infinity. Starting with version 4.2.2,
-for such values @command{gawk} prints one of the four strings
+Besides handling input, @command{gawk} also needs to print ``correct'' values on
+output when a value is either NaN or infinity. Starting with @value{PVERSION}
+4.2.2, for such values @command{gawk} prints one of the four strings
just described: @samp{+inf}, @samp{-inf}, @samp{+nan}, or @samp{-nan}.
Similarly, in POSIX mode, @command{gawk} prints the result of
the system's C @code{printf()} function using the @code{%g} format string
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index 29befae8..430f8312 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -10511,6 +10511,69 @@ eight-bit ASCII characters, including ASCII @sc{nul} (character code zero).
Other @command{awk}
implementations may have difficulty with some character codes.
+Some languages allow you to continue long strings across
+multiple lines by ending the line with a backslash. For example in C:
+
+@example
+#include <stdio.h>
+
+int main()
+@{
+ printf "hello, \
+world\n");
+ return 0;
+@}
+@end example
+
+@noindent
+In such a case, the C compiler removes both the backslash and the newline,
+producing a string as if it had been typed @samp{"hello, world\n"}.
+This is useful when a single string needs to contain a large amount of text.
+
+The POSIX standard says explicitly that newlines are not allowed inside string
+constants. And indeed, all @command{awk} implementations report an error
+if you try to do so. For example:
+
+@example
+$ @kbd{gawk 'BEGIN @{ print "hello, }
+> @kbd{world" @}'}
+@print{} gawk: cmd. line:1: BEGIN { print "hello,
+@print{} gawk: cmd. line:1: ^ unterminated string
+@print{} gawk: cmd. line:1: BEGIN { print "hello,
+@print{} gawk: cmd. line:1: ^ syntax error
+@end example
+
+@cindex dark corner, string continuation
+@cindex strings, continuation across lines
+@cindex differences in @command{awk} and @command{gawk}, strings
+Although POSIX doesn't define what happens if you use an escaped
+newline, as in the previous C example, all known versions of
+@command{awk} allow you to do so. Unfortunately, what each one
+does with such a string varies. @value{DARKCORNER} @command{gawk},
+@command{mawk}, and the OpenSolaris POSIX @command{awk}
+(@pxref{Other Versions}) elide the backslash and newline, as in C:
+
+@example
+$ @kbd{gawk 'BEGIN @{ print "hello, \}
+> @kbd{world" @}'}
+@print{} hello, world
+@end example
+
+Brian Kernighan's @command{awk} and Busybox @command{awk}
+remove the backslash but leave the newline
+intact, as part of the string:
+
+@example
+$ @kbd{nawk 'BEGIN @{ print "hello, \}
+> @kbd{world" @}'}
+@print{} hello,
+@print{} world
+@end example
+
+In POSIX mode (@pxref{Options}), @command{gawk} does not
+allow escaped newlines. Otherwise, it behaves as
+just described.
+
@node Nondecimal-numbers
@subsubsection Octal and Hexadecimal Numbers
@cindex octal numbers
@@ -31674,9 +31737,9 @@ $ @kbd{echo 0xDeadBeef | gawk '@{ print $1 + 0 @}'}
Thus, @samp{+nan} and @samp{+NaN} are the same.
@end itemize
-Besides handling imput, @command{gawk} also needs to print ``correct'' values on
-output when a value is either NaN or infinity. Starting with version 4.2.2,
-for such values @command{gawk} prints one of the four strings
+Besides handling input, @command{gawk} also needs to print ``correct'' values on
+output when a value is either NaN or infinity. Starting with @value{PVERSION}
+4.2.2, for such values @command{gawk} prints one of the four strings
just described: @samp{+inf}, @samp{-inf}, @samp{+nan}, or @samp{-nan}.
Similarly, in POSIX mode, @command{gawk} prints the result of
the system's C @code{printf()} function using the @code{%g} format string
diff --git a/doc/gawkworkflow.texi b/doc/gawkworkflow.texi
index 2b971395..90b3c78c 100644
--- a/doc/gawkworkflow.texi
+++ b/doc/gawkworkflow.texi
@@ -28,10 +28,10 @@
@c applies to and all the info about who's publishing this edition
@c These apply across the board.
-@set UPDATE-MONTH November, 2017
+@set UPDATE-MONTH July, 2018
@set TITLE Participating in @command{gawk} Development
-@set EDITION 0.7
+@set EDITION 0.71
@iftex
@set DOCUMENT booklet
@@ -903,8 +903,8 @@ the @command{gawk} maintainer recommends that you use are:
@cindex configuration setting, @code{push.default}
@cindex configuration setting, @code{pager.status}
@example
-$ @kbd{git config --global push.default=simple} @ii{Only push current branch}
-$ @kbd{git config --global pager.status=true} @ii{Use pager for output of} git status
+$ @kbd{git config --global push.default simple} @ii{Only push current branch}
+$ @kbd{git config --global pager.status true} @ii{Use pager for output of} git status
@end example
@cindex @file{.gitconfig} file
diff --git a/interpret.h b/interpret.h
index 8408a532..fed0078c 100644
--- a/interpret.h
+++ b/interpret.h
@@ -46,6 +46,7 @@ unfield(NODE **l, NODE **r)
(*l) = dupnode(*r);
DEREF(*r);
}
+ force_string(*l);
}
#define UNFIELD(l, r) unfield(& (l), & (r))
diff --git a/main.c b/main.c
index 25a628ba..4e94bddd 100644
--- a/main.c
+++ b/main.c
@@ -1165,11 +1165,18 @@ arg_assign(char *arg, bool initing)
fatal(_("cannot use function `%s' as variable name"), arg);
}
+ // POSIX disallows any newlines inside strings
+ // The scanner handles that for program files.
+ // We have to check here for strings passed to -v.
+ if (do_posix && strchr(cp, '\n') != NULL)
+ fatal(_("POSIX does not allow physical newlines in string values"));
+
/*
* BWK awk expands escapes inside assignments.
* This makes sense, so we do it too.
+ * In addition, remove \-<newline> as in scanning.
*/
- it = make_str_node(cp, strlen(cp), SCAN);
+ it = make_str_node(cp, strlen(cp), SCAN | ELIDE_BACK_NL);
it->flags |= USER_INPUT;
#ifdef LC_NUMERIC
/*
diff --git a/node.c b/node.c
index 54ea6627..2f9e6d4c 100644
--- a/node.c
+++ b/node.c
@@ -450,7 +450,9 @@ make_str_node(const char *s, size_t len, int flags)
c = parse_escape(&pf);
if (c < 0) {
if (do_lint)
- lintwarn(_("backslash at end of string"));
+ lintwarn(_("backslash string continuation is not portable"));
+ if ((flags & ELIDE_BACK_NL) != 0)
+ continue;
c = '\\';
}
*ptm++ = c;
diff --git a/re.c b/re.c
index eedd05ac..eefdfcd7 100644
--- a/re.c
+++ b/re.c
@@ -100,6 +100,12 @@ make_regexp(const char *s, size_t len, bool ignorecase, bool dfa, bool canfatal)
}
}
+ const char *ok_to_escape;
+ if (do_traditional)
+ ok_to_escape = "()|*+?.^$\\[]/-";
+ else
+ ok_to_escape = "<>`'BywWsS{}()|*+?.^$\\[]/-";
+
/* We skip multibyte character, since it must not be a special
character. */
if ((gawk_mb_cur_max == 1 || ! is_multibyte) &&
@@ -141,6 +147,14 @@ make_regexp(const char *s, size_t len, bool ignorecase, bool dfa, bool canfatal)
case '9': /* a\9b not valid */
*dest++ = c;
src++;
+ {
+ static bool warned[2];
+
+ if (! warned[c - '8']) {
+ warning(_("regexp escape sequence `\\%c' treated as plain `%c'"), c, c);
+ warned[c - '8'] = true;
+ }
+ }
break;
case 'y': /* normally \b */
/* gnu regex op */
@@ -152,6 +166,14 @@ make_regexp(const char *s, size_t len, bool ignorecase, bool dfa, bool canfatal)
}
/* else, fall through */
default:
+ if (strchr(ok_to_escape, c) == NULL) {
+ static bool warned[256];
+
+ if (! warned[c & 0xFF]) {
+ warning(_("regexp escape sequence `\\%c' is not a known regexp operator"), c);
+ warned[c & 0xFF] = true;
+ }
+ }
*dest++ = '\\';
*dest++ = (char) c;
src++;
diff --git a/test/ChangeLog b/test/ChangeLog
index 2d85c9a9..2af89e66 100644
--- a/test/ChangeLog
+++ b/test/ChangeLog
@@ -1,3 +1,18 @@
+2018-07-31 Arnold D. Robbins <arnold@skeeve.com>
+
+ * Makefile.am (EXTRA_DIST): Add assignnumfield files.
+ * assignnumfield.awk, assignnumfield.in, assignnumfield.ok: New files.
+
+2018-07-31 Arnold D. Robbins <arnold@skeeve.com>
+
+ * Makefile.am (EXTRA_DIST): Add arraysort2 files.
+ * arraysort2.awk, arraysort2.ok: New files.
+
+2018-07-27 Arnold D. Robbins <arnold@skeeve.com>
+
+ * back89.ok, funstack.ok, gsubtst5.ok: Update after code changes.
+ * lintwarn.ok: Ditto.
+
2018-07-13 Arnold D. Robbins <arnold@skeeve.com>
* fmtspcl.awk, fmtspcl.tok, numrange.ok: Revised after code changes
diff --git a/test/Makefile.am b/test/Makefile.am
index 4ab96409..774424f7 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -74,6 +74,8 @@ EXTRA_DIST = \
arrayref.ok \
arraysort.awk \
arraysort.ok \
+ arraysort2.awk \
+ arraysort2.ok \
arrdbg.awk \
arrymem1.awk \
arrymem1.ok \
@@ -119,6 +121,9 @@ EXTRA_DIST = \
asort.ok \
asorti.awk \
asorti.ok \
+ assignnumfield.awk \
+ assignnumfield.in \
+ assignnumfield.ok \
awkpath.ok \
back89.awk \
back89.in \
@@ -1233,7 +1238,7 @@ BASIC_TESTS = \
addcomma anchgsub anchor argarray arrayind1 arrayind2 arrayind3 arrayparm \
arrayprm2 arrayprm3 arrayref arrymem1 arryref2 arryref3 arryref4 arryref5 \
arynasty arynocls aryprm1 aryprm2 aryprm3 aryprm4 aryprm5 aryprm6 aryprm7 \
- aryprm8 aryprm9 arysubnm aryunasgn asgext awkpath \
+ aryprm8 aryprm9 arysubnm aryunasgn asgext awkpath assignnumfield \
back89 backgsub badassign1 badbuild \
callparam childin clobber closebad clsflnam compare compare2 \
concat1 concat2 concat3 concat4 concat5 convfmt \
@@ -1275,7 +1280,7 @@ UNIX_TESTS = \
space strftlng
GAWK_EXT_TESTS = \
- aadelete1 aadelete2 aarray1 aasort aasorti argtest arraysort \
+ aadelete1 aadelete2 aarray1 aasort aasorti argtest arraysort arraysort2 \
backw badargs beginfile1 beginfile2 binmode1 \
charasbytes colonwarn clos1way clos1way2 clos1way3 clos1way4 clos1way5 \
clos1way6 crlf \
diff --git a/test/Makefile.in b/test/Makefile.in
index 5b34a5ad..69b86d07 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -332,6 +332,8 @@ EXTRA_DIST = \
arrayref.ok \
arraysort.awk \
arraysort.ok \
+ arraysort2.awk \
+ arraysort2.ok \
arrdbg.awk \
arrymem1.awk \
arrymem1.ok \
@@ -377,6 +379,9 @@ EXTRA_DIST = \
asort.ok \
asorti.awk \
asorti.ok \
+ assignnumfield.awk \
+ assignnumfield.in \
+ assignnumfield.ok \
awkpath.ok \
back89.awk \
back89.in \
@@ -1491,7 +1496,7 @@ BASIC_TESTS = \
addcomma anchgsub anchor argarray arrayind1 arrayind2 arrayind3 arrayparm \
arrayprm2 arrayprm3 arrayref arrymem1 arryref2 arryref3 arryref4 arryref5 \
arynasty arynocls aryprm1 aryprm2 aryprm3 aryprm4 aryprm5 aryprm6 aryprm7 \
- aryprm8 aryprm9 arysubnm aryunasgn asgext awkpath \
+ aryprm8 aryprm9 arysubnm aryunasgn asgext awkpath assignnumfield \
back89 backgsub badassign1 badbuild \
callparam childin clobber closebad clsflnam compare compare2 \
concat1 concat2 concat3 concat4 concat5 convfmt \
@@ -1533,7 +1538,7 @@ UNIX_TESTS = \
space strftlng
GAWK_EXT_TESTS = \
- aadelete1 aadelete2 aarray1 aasort aasorti argtest arraysort \
+ aadelete1 aadelete2 aarray1 aasort aasorti argtest arraysort arraysort2 \
backw badargs beginfile1 beginfile2 binmode1 \
charasbytes colonwarn clos1way clos1way2 clos1way3 clos1way4 clos1way5 \
clos1way6 crlf \
@@ -2785,6 +2790,11 @@ asgext:
@AWKPATH="$(srcdir)" $(AWK) -f $@.awk < "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+assignnumfield:
+ @echo $@
+ @AWKPATH="$(srcdir)" $(AWK) -f $@.awk < "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
+ @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+
back89:
@echo $@
@AWKPATH="$(srcdir)" $(AWK) -f $@.awk < "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
@@ -3904,6 +3914,11 @@ arraysort:
@AWKPATH="$(srcdir)" $(AWK) -f $@.awk >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+arraysort2:
+ @echo $@
+ @AWKPATH="$(srcdir)" $(AWK) -f $@.awk >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
+ @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+
backw:
@echo $@
@AWKPATH="$(srcdir)" $(AWK) -f $@.awk < "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
diff --git a/test/Maketests b/test/Maketests
index 5e5fa5ee..eb7c4651 100644
--- a/test/Maketests
+++ b/test/Maketests
@@ -140,6 +140,11 @@ asgext:
@AWKPATH="$(srcdir)" $(AWK) -f $@.awk < "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+assignnumfield:
+ @echo $@
+ @AWKPATH="$(srcdir)" $(AWK) -f $@.awk < "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
+ @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+
back89:
@echo $@
@AWKPATH="$(srcdir)" $(AWK) -f $@.awk < "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
@@ -1259,6 +1264,11 @@ arraysort:
@AWKPATH="$(srcdir)" $(AWK) -f $@.awk >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+arraysort2:
+ @echo $@
+ @AWKPATH="$(srcdir)" $(AWK) -f $@.awk >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
+ @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+
backw:
@echo $@
@AWKPATH="$(srcdir)" $(AWK) -f $@.awk < "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
diff --git a/test/arraysort2.awk b/test/arraysort2.awk
new file mode 100644
index 00000000..e52d2a7c
--- /dev/null
+++ b/test/arraysort2.awk
@@ -0,0 +1,34 @@
+# This should no longer core dump ... 7/31/2018
+function init(b, a, i)
+{
+ a[1] = "aardvark"
+ a[2] = "animal"
+ a[3] = "zebra"
+ a[4] = "zoo"
+ a[5] = "Iguana"
+ a[6] = "Alligator"
+ a[7] =a[8] = "people"
+ for (i in a)
+ b[IGNORECASE][i] = a[i]
+}
+
+BEGIN {
+
+ for (IGNORECASE = 0; IGNORECASE < 2; IGNORECASE++) {
+ init(b)
+
+ n = asort(b[IGNORECASE])
+
+ for (i = 1; i <= n; i++)
+ printf("b[%d][%d] = \"%s\"\n", IGNORECASE, i, b[IGi])
+
+ print "===="
+ }
+
+ IGNORECASE = 1
+ init(b)
+ b[2][1] = ""
+ n = asort(b[1], b[2])
+ for (i = 1; i <= n; i++)
+ printf("b[2][%d] = \"%s\"\n", i, b[2][i])
+}
diff --git a/test/arraysort2.ok b/test/arraysort2.ok
new file mode 100644
index 00000000..8fda0bfd
--- /dev/null
+++ b/test/arraysort2.ok
@@ -0,0 +1,26 @@
+b[0][1] = ""
+b[0][2] = ""
+b[0][3] = ""
+b[0][4] = ""
+b[0][5] = ""
+b[0][6] = ""
+b[0][7] = ""
+b[0][8] = ""
+====
+b[1][1] = ""
+b[1][2] = ""
+b[1][3] = ""
+b[1][4] = ""
+b[1][5] = ""
+b[1][6] = ""
+b[1][7] = ""
+b[1][8] = ""
+====
+b[2][1] = "aardvark"
+b[2][2] = "Alligator"
+b[2][3] = "animal"
+b[2][4] = "Iguana"
+b[2][5] = "people"
+b[2][6] = "people"
+b[2][7] = "zebra"
+b[2][8] = "zoo"
diff --git a/test/assignnumfield.awk b/test/assignnumfield.awk
new file mode 100644
index 00000000..3a056cb0
--- /dev/null
+++ b/test/assignnumfield.awk
@@ -0,0 +1 @@
+{$0 = ++i} 1
diff --git a/test/assignnumfield.in b/test/assignnumfield.in
new file mode 100644
index 00000000..b82c4b2d
--- /dev/null
+++ b/test/assignnumfield.in
@@ -0,0 +1,5 @@
+a b c
+a b c
+a b c
+a b c
+a b c
diff --git a/test/assignnumfield.ok b/test/assignnumfield.ok
new file mode 100644
index 00000000..8a1218a1
--- /dev/null
+++ b/test/assignnumfield.ok
@@ -0,0 +1,5 @@
+1
+2
+3
+4
+5
diff --git a/test/back89.ok b/test/back89.ok
index e9ea4d5f..8eebce47 100644
--- a/test/back89.ok
+++ b/test/back89.ok
@@ -1 +1,2 @@
+gawk: back89.awk:1: warning: regexp escape sequence `\8' treated as plain `8'
a8b
diff --git a/test/funstack.ok b/test/funstack.ok
index e69de29b..04030d3b 100644
--- a/test/funstack.ok
+++ b/test/funstack.ok
@@ -0,0 +1,10 @@
+gawk: funstack.awk:129: warning: regexp escape sequence `\"' is not a known regexp operator
+gawk: funstack.awk:381: warning: regexp escape sequence `\e' is not a known regexp operator
+gawk: funstack.awk:386: warning: regexp escape sequence `\i' is not a known regexp operator
+gawk: funstack.awk:395: warning: regexp escape sequence `\o' is not a known regexp operator
+gawk: funstack.awk:402: warning: regexp escape sequence `\u' is not a known regexp operator
+gawk: funstack.awk:412: warning: regexp escape sequence `\A' is not a known regexp operator
+gawk: funstack.awk:427: warning: regexp escape sequence `\I' is not a known regexp operator
+gawk: funstack.awk:436: warning: regexp escape sequence `\O' is not a known regexp operator
+gawk: funstack.awk:443: warning: regexp escape sequence `\U' is not a known regexp operator
+gawk: funstack.awk:952: warning: regexp escape sequence `\&' is not a known regexp operator
diff --git a/test/gsubtst5.ok b/test/gsubtst5.ok
index b038c8af..66488fd1 100644
--- a/test/gsubtst5.ok
+++ b/test/gsubtst5.ok
@@ -1 +1,5 @@
+gawk: gsubtst5.awk:95: warning: regexp escape sequence `\ ' is not a known regexp operator
+gawk: gsubtst5.awk:95: warning: regexp escape sequence `\"' is not a known regexp operator
+gawk: gsubtst5.awk:95: warning: regexp escape sequence `\@' is not a known regexp operator
+gawk: gsubtst5.awk:95: warning: regexp escape sequence `\,' is not a known regexp operator
ThisIsaTitleMyTitle
diff --git a/test/lintwarn.awk b/test/lintwarn.awk
index cea76bbc..d430a2b4 100644
--- a/test/lintwarn.awk
+++ b/test/lintwarn.awk
@@ -36,3 +36,8 @@ function zz(aa, aa)
return aa
}
@include ""
+BEGIN {
+ print "foo" > "foo" 1 # should warn
+ print "foo" > ("foo" 1) # should not warn
+ system("rm -f foo1 foo2")
+}
diff --git a/test/lintwarn.ok b/test/lintwarn.ok
index bc5226e6..d0993ea7 100644
--- a/test/lintwarn.ok
+++ b/test/lintwarn.ok
@@ -33,6 +33,7 @@ gawk: lintwarn.awk:32: warning: non-redirected `getline' undefined inside END ac
gawk: lintwarn.awk:34: error: function `zz': parameter #2, `aa', duplicates parameter #1
gawk: lintwarn.awk:38: warning: `include' is a gawk extension
gawk: lintwarn.awk:38: warning: empty filename after @include
+gawk: lintwarn.awk:41: warning: concatenation as I/O `>' redirection target is ambiguous
gawk: warning: function `f' called but never defined
gawk: warning: function `zz' defined but never called directly
EXIT CODE: 1
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-05 17:22:38 +0000