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Diffstat (limited to 'test/regnul2.awk')
| -rw-r--r-- | test/regnul2.awk | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/test/regnul2.awk b/test/regnul2.awk new file mode 100644 index 00000000..3d93df41 --- /dev/null +++ b/test/regnul2.awk @@ -0,0 +1,112 @@ +# From denis@gissoft.eu Thu May 29 09:10:18 IDT 2014 +# Article: 8408 of comp.lang.awk +# X-Received: by 10.182.128.166 with SMTP id np6mr93689obb.16.1401289466734; +# Wed, 28 May 2014 08:04:26 -0700 (PDT) +# X-Received: by 10.140.36.6 with SMTP id o6mr4939qgo.26.1401289466607; Wed, 28 +# May 2014 08:04:26 -0700 (PDT) +# Path: eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!news.glorb.com!c1no19185457igq.0!news-out.google.com!qf4ni13600igc.0!nntp.google.com!c1no19185454igq.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail +# Newsgroups: comp.lang.awk +# Date: Wed, 28 May 2014 08:04:26 -0700 (PDT) +# In-Reply-To: <lm4rra$4u9$1@dont-email.me> +# Complaints-To: groups-abuse@google.com +# Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=82.131.35.51; posting-account=zNhVLgoAAACsg-WfVe_or2VV7loUhx8H +# NNTP-Posting-Host: 82.131.35.51 +# References: <3112e356-d2e1-45cd-ba55-2f939ee50105@googlegroups.com> +# <lm34d7$tb4$1@news.m-online.net> <f666871f-a94c-4505-9677-8711d656433c@googlegroups.com> +# <lm4rra$4u9$1@dont-email.me> +# User-Agent: G2/1.0 +# MIME-Version: 1.0 +# Message-ID: <79828a24-d265-4e88-8de1-e61ecbaa6701@googlegroups.com> +# Subject: Re: \0 character can't be implement inside regexp in some cases? +# From: Denis Shirokov <denis@gissoft.eu> +# Injection-Date: Wed, 28 May 2014 15:04:26 +0000 +# Content-Type: text/plain; charset=ISO-8859-1 +# Xref: news.eternal-september.org comp.lang.awk:8408 +# +# +# All of the other use-cases just cluttered up your posting. +# +# oh, really? +# +# 1. where in the Janis code the case with the `switch-case'? +# 2. how do you know about that there is only two cases? may be you know it because my code contains the other test cases? +# 3. fine. do you know what situation with the dynamic regexps? no? +# 4. do you know what situation with RS,FS and /.../ in the middle-area? how you can say that there is only two cases if you absolutely do not know it? +# +# i'm asking: WHO will perform testing other cases? You? gawk-team? the God? +# what is that point of view: that it will be enough to say: +# Oh! my match(t,/^\0$/) is matching "\x00" but t~/^\0$/ is not. why oh why? +# +# where is the test cover? or you think that other peoples will doing its instead of You? instead of Me? +# +# and the second point: guys you are screaming about two levels of stack. really, you kidding? =) +# +# however, i'm attaching some additional information about dynrexp: +# +func _chmd(t,r) { + _ch("match()",match(t,r)) + _ch("split()",split(t,A,r)>1) + _ch("patsplit()",patsplit(t,A,r)) + _ch("gsub()",gsub(r,"&",t)) + t2=t; _ch("sub()",sub(r,"&",t2)) + _ch("gensub()",!gensub(r,"","G",t)) + _ch("str~/rexp/",t~r) + # switch-case is not applicable with dynrxp + _conline() } + +func _ch(fn,bool) { + print substr(fn ": ",1,16) (bool ? "+" : "-") } + +func _conline() { + print "__________________________"; print } + +BEGIN{ _chmd("\x01","^\1$") #testing that all doings right; all match + _chmd("\x00","^\1$") #testing that all doings right; all not match + _chmd("\x00","^\0$") #tesing dynrexp +} +# +# output: +# +# match(): + +# split(): + +# patsplit(): + +# gsub(): + +# sub(): + +# gensub(): + +# str~/rexp/: + +# __________________________ +# +# match(): - +# split(): - +# patsplit(): - +# gsub(): - +# sub(): - +# gensub(): - +# str~/rexp/: - +# __________________________ +# +# match(): + +# split(): + +# patsplit(): + +# gsub(): + +# sub(): + +# gensub(): + +# str~/rexp/: - +# +# it's looks like with the dynamic regexp the same story. +# +# i found another one moment that is possible near with the reason of this issue: +# +# i was testing what characters can be present in doublestring and regexp "directly" (just as the character) and what characters must be present as escape sequence (\qqq) +# +# so, i found the following: +# +# t="abc" +# if ( match(t,/^abc[NUL]def/) ) ... - where [NUL] is the character \x00 +# +# it's seems that in that case the regular expression is processed until [NUL]character and the other part is ignored because the example above gives TRUE +# +# friendship +# Denis Shirokov +# +# |