diff options
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/ash.c | 44 |
1 files changed, 29 insertions, 15 deletions
diff --git a/shell/ash.c b/shell/ash.c index a63d40d7e..b71fc0299 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -9774,11 +9774,6 @@ popstring(void) INT_ON; } -//FIXME: BASH_COMPAT with "...&" does TWO pungetc(): -//it peeks whether it is &>, and then pushes back both chars. -//This function needs to save last *next_to_pgetc to buf[0] -//to make two pungetc() reliable. Currently, -// pgetc (out of buf: does preadfd), pgetc, pungetc, pungetc won't work... static int preadfd(void) { @@ -10037,6 +10032,25 @@ pungetc(void) g_parsefile->unget++; } +/* This one eats backslash+newline */ +static int +pgetc_eatbnl(void) +{ + int c; + + while ((c = pgetc()) == '\\') { + if (pgetc() != '\n') { + pungetc(); + break; + } + + g_parsefile->linno++; + setprompt_if(doprompt, 2); + } + + return c; +} + /* * To handle the "." command, a stack of input files is used. Pushfile * adds a new entry to the stack and popfile restores the previous level. @@ -11625,7 +11639,7 @@ parsesub: { int typeloc; int flags; - c = pgetc(); + c = pgetc_eatbnl(); if (c > 255 /* PEOA or PEOF */ || (c != '(' && c != '{' && !is_name(c) && !is_special(c)) ) { @@ -11638,7 +11652,7 @@ parsesub: { pungetc(); } else if (c == '(') { /* $(command) or $((arith)) */ - if (pgetc() == '(') { + if (pgetc_eatbnl() == '(') { #if ENABLE_SH_MATH_SUPPORT PARSEARITH(); #else @@ -11655,9 +11669,9 @@ parsesub: { USTPUTC(VSNORMAL, out); subtype = VSNORMAL; if (c == '{') { - c = pgetc(); + c = pgetc_eatbnl(); if (c == '#') { - c = pgetc(); + c = pgetc_eatbnl(); if (c == '}') c = '#'; /* ${#} - same as $# */ else @@ -11670,18 +11684,18 @@ parsesub: { /* $[{[#]]NAME[}] */ do { STPUTC(c, out); - c = pgetc(); + c = pgetc_eatbnl(); } while (c <= 255 /* not PEOA or PEOF */ && is_in_name(c)); } else if (isdigit(c)) { /* $[{[#]]NUM[}] */ do { STPUTC(c, out); - c = pgetc(); + c = pgetc_eatbnl(); } while (isdigit(c)); } else if (is_special(c)) { /* $[{[#]]<specialchar>[}] */ USTPUTC(c, out); - c = pgetc(); + c = pgetc_eatbnl(); } else { badsub: raise_error_syntax("bad substitution"); @@ -11699,7 +11713,7 @@ parsesub: { /* c == first char after VAR */ switch (c) { case ':': - c = pgetc(); + c = pgetc_eatbnl(); #if ENABLE_ASH_BASH_COMPAT /* This check is only needed to not misinterpret * ${VAR:-WORD}, ${VAR:+WORD}, ${VAR:=WORD}, ${VAR:?WORD} @@ -11724,7 +11738,7 @@ parsesub: { case '#': { int cc = c; subtype = (c == '#' ? VSTRIMLEFT : VSTRIMRIGHT); - c = pgetc(); + c = pgetc_eatbnl(); if (c != cc) goto do_pungetc; subtype++; @@ -11736,7 +11750,7 @@ parsesub: { //TODO: encode pattern and repl separately. // Currently ${v/$var_with_slash/repl} is horribly broken subtype = VSREPLACE; - c = pgetc(); + c = pgetc_eatbnl(); if (c != '/') goto do_pungetc; subtype++; /* VSREPLACEALL */ |