diff options
| -rw-r--r-- | shell/ash.c | 47 | ||||
| -rw-r--r-- | shell/ash_test/ash-heredoc/heredoc_backslash1.right | 43 | ||||
| -rwxr-xr-x | shell/ash_test/ash-heredoc/heredoc_backslash1.tests | 70 | ||||
| -rw-r--r-- | shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.right | 8 | ||||
| -rwxr-xr-x | shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.tests | 25 | ||||
| -rw-r--r-- | shell/hush_test/hush-heredoc/heredoc_bkslash_newline1.right | 8 | ||||
| -rwxr-xr-x | shell/hush_test/hush-heredoc/heredoc_bkslash_newline1.tests | 25 |
7 files changed, 191 insertions, 35 deletions
diff --git a/shell/ash.c b/shell/ash.c index 2ed802d2e..a7767b4f8 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -12225,7 +12225,7 @@ parseredir: { np = stzalloc(sizeof(struct nfile)); if (c == '>') { np->nfile.fd = 1; - c = pgetc(); + c = pgetc_eatbnl(); if (c == '>') np->type = NAPPEND; else if (c == '|') @@ -12247,7 +12247,7 @@ parseredir: { #endif else { /* c == '<' */ /*np->nfile.fd = 0; - stzalloc did it */ - c = pgetc(); + c = pgetc_eatbnl(); switch (c) { case '<': if (sizeof(struct nfile) != sizeof(struct nhere)) { @@ -12257,7 +12257,7 @@ parseredir: { np->type = NHERE; heredoc = stzalloc(sizeof(struct heredoc)); heredoc->here = np; - c = pgetc(); + c = pgetc_eatbnl(); if (c == '-') { heredoc->striptabs = 1; } else { @@ -12487,23 +12487,13 @@ parsebackq: { int pc; setprompt_if(needprompt, 2); - pc = pgetc(); + pc = pgetc_eatbnl(); switch (pc) { case '`': goto done; case '\\': - pc = pgetc(); - if (pc == '\n') { - nlprompt(); - /* - * If eating a newline, avoid putting - * the newline into the new character - * stream (via the STPUTC after the - * switch). - */ - continue; - } + pc = pgetc(); /* or pgetc_eatbnl()? why (example)? */ if (pc != '\\' && pc != '`' && pc != '$' && (!dblquote || pc != '"') ) { @@ -12635,7 +12625,7 @@ xxreadtoken(void) } setprompt_if(needprompt, 2); for (;;) { /* until token or start of word found */ - c = pgetc(); + c = pgetc_eatbnl(); if (c == ' ' || c == '\t' IF_ASH_ALIAS( || c == PEOA)) continue; @@ -12644,11 +12634,7 @@ xxreadtoken(void) continue; pungetc(); } else if (c == '\\') { - if (pgetc() != '\n') { - pungetc(); - break; /* return readtoken1(...) */ - } - nlprompt(); + break; /* return readtoken1(...) */ } else { const char *p; @@ -12695,7 +12681,7 @@ xxreadtoken(void) } setprompt_if(needprompt, 2); for (;;) { /* until token or start of word found */ - c = pgetc(); + c = pgetc_eatbnl(); switch (c) { case ' ': case '\t': IF_ASH_ALIAS(case PEOA:) @@ -12705,30 +12691,23 @@ xxreadtoken(void) continue; pungetc(); continue; - case '\\': - if (pgetc() == '\n') { - nlprompt(); - continue; - } - pungetc(); - goto breakloop; case '\n': nlnoprompt(); RETURN(TNL); case PEOF: RETURN(TEOF); case '&': - if (pgetc() == '&') + if (pgetc_eatbnl() == '&') RETURN(TAND); pungetc(); RETURN(TBACKGND); case '|': - if (pgetc() == '|') + if (pgetc_eatbnl() == '|') RETURN(TOR); pungetc(); RETURN(TPIPE); case ';': - if (pgetc() == ';') + if (pgetc_eatbnl() == ';') RETURN(TENDCASE); pungetc(); RETURN(TSEMI); @@ -12736,11 +12715,9 @@ xxreadtoken(void) RETURN(TLP); case ')': RETURN(TRP); - default: - goto breakloop; } + break; } - breakloop: return readtoken1(c, BASESYNTAX, (char *)NULL, 0); #undef RETURN } diff --git a/shell/ash_test/ash-heredoc/heredoc_backslash1.right b/shell/ash_test/ash-heredoc/heredoc_backslash1.right new file mode 100644 index 000000000..6a6114821 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_backslash1.right @@ -0,0 +1,43 @@ +Quoted heredoc: +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-') +c\ + +Unquoted heredoc: +a b +a\ + b + 123456 -qwerty-\t-\-\"-\'-`-\--\z-\*-\?- + -qwerty-\t-\-\"-\'-`-\--\z-\*-\?- + 123456 v-$a-\t-\-\"-\x-`-\--\z-\*-\?- + 123456 v-$a-\t-\\-\"-\x-\`-\--\z-\*-\?- +cEOF2 + +Quoted -heredoc: +a\ +b +a\\ +b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- +-$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-') +c\ + +Unquoted -heredoc: +a b +a\ +b + 123456 -qwerty-\t-\-\"-\'-`-\--\z-\*-\?- +-qwerty-\t-\-\"-\'-`-\--\z-\*-\?- + 123456 v-$a-\t-\-\"-\x-`-\--\z-\*-\?- + 123456 v-$a-\t-\\-\"-\x-\`-\--\z-\*-\?- +cEOF4 + +Done: 0 diff --git a/shell/ash_test/ash-heredoc/heredoc_backslash1.tests b/shell/ash_test/ash-heredoc/heredoc_backslash1.tests new file mode 100755 index 000000000..501af5490 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_backslash1.tests @@ -0,0 +1,70 @@ +# Test for correct handling of backslashes. +# Note that some lines in each heredoc start with a tab. + +a=qwerty + +echo Quoted heredoc: +cat <<"EOF1" +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-') +c\ +EOF1 +echo + +echo Unquoted heredoc: +cat <<EOF2 +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\x-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\x-\`-\--\z-\*-\?-') +c\ +EOF2 +EOF2 +echo + +echo Quoted -heredoc: +cat <<-"EOF3" +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-') +c\ + EOF3 +# In -heredoc case the marker is detected even if it is indented. +echo + +echo Unquoted -heredoc: +cat <<-EOF4 +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\x-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\x-\`-\--\z-\*-\?-') +c\ +EOF4 + EOF4 +# The marker is not detected if preceding line ends in backslash. +# TODO: marker should be detected even if it is split by line continuation: +# EOF\ +# 4 +# but currently hush doesn't do it. (Tab before "4" is not allowed, though.) +echo + +echo "Done: $?" diff --git a/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.right b/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.right new file mode 100644 index 000000000..fdb7ebd03 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.right @@ -0,0 +1,8 @@ +heredoc0 +Ok0:0 +heredoc1 +Ok1:0 +heredoc2 +Ok2:0 +heredoc3 +Ok4:0 diff --git a/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.tests b/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.tests new file mode 100755 index 000000000..584edd0e4 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.tests @@ -0,0 +1,25 @@ +cat <\ +<\ +EOF +heredoc0 +EOF +echo Ok0:$? + +cat <<\ + EOF +heredoc1 +EOF +echo Ok1:$? + +cat <<\ +- EOF +heredoc2 + EOF +echo Ok2:$? + +cat <\ +<\ +- EOF +heredoc3 + EOF +echo Ok4:$? diff --git a/shell/hush_test/hush-heredoc/heredoc_bkslash_newline1.right b/shell/hush_test/hush-heredoc/heredoc_bkslash_newline1.right new file mode 100644 index 000000000..fdb7ebd03 --- /dev/null +++ b/shell/hush_test/hush-heredoc/heredoc_bkslash_newline1.right @@ -0,0 +1,8 @@ +heredoc0 +Ok0:0 +heredoc1 +Ok1:0 +heredoc2 +Ok2:0 +heredoc3 +Ok4:0 diff --git a/shell/hush_test/hush-heredoc/heredoc_bkslash_newline1.tests b/shell/hush_test/hush-heredoc/heredoc_bkslash_newline1.tests new file mode 100755 index 000000000..584edd0e4 --- /dev/null +++ b/shell/hush_test/hush-heredoc/heredoc_bkslash_newline1.tests @@ -0,0 +1,25 @@ +cat <\ +<\ +EOF +heredoc0 +EOF +echo Ok0:$? + +cat <<\ + EOF +heredoc1 +EOF +echo Ok1:$? + +cat <<\ +- EOF +heredoc2 + EOF +echo Ok2:$? + +cat <\ +<\ +- EOF +heredoc3 + EOF +echo Ok4:$? |