diff options
Diffstat (limited to 'subst.h')
| -rw-r--r-- | subst.h | 72 |
1 files changed, 54 insertions, 18 deletions
@@ -1,22 +1,22 @@ /* subst.h -- Names of externally visible functions in subst.c. */ -/* Copyright (C) 1993-2004 Free Software Foundation, Inc. +/* Copyright (C) 1993-2009 Free Software Foundation, Inc. This file is part of GNU Bash, the Bourne Again SHell. - Bash is free software; you can redistribute it and/or modify it under - the terms of the GNU General Public License as published by the Free - Software Foundation; either version 2, or (at your option) any later - version. + Bash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. - Bash is distributed in the hope that it will be useful, but WITHOUT ANY - WARRANTY; without even the implied warranty of MERCHANTABILITY or - FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - for more details. + Bash is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. - You should have received a copy of the GNU General Public License along - with Bash; see the file COPYING. If not, write to the Free Software - Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ + You should have received a copy of the GNU General Public License + along with Bash. If not, see <http://www.gnu.org/licenses/>. +*/ #if !defined (_SUBST_H_) #define _SUBST_H_ @@ -42,6 +42,17 @@ /* Flag values controlling how assignment statements are treated. */ #define ASS_APPEND 0x01 #define ASS_MKLOCAL 0x02 +#define ASS_MKASSOC 0x04 + +/* Flags for the string extraction functions. */ +#define SX_NOALLOC 0x01 /* just skip; don't return substring */ +#define SX_VARNAME 0x02 /* variable name; for string_extract () */ +#define SX_REQMATCH 0x04 /* closing/matching delimiter required */ +#define SX_COMMAND 0x08 /* extracting a shell script/command */ +#define SX_NOCTLESC 0x10 /* don't honor CTLESC quoting */ +#define SX_NOESCCTLNUL 0x20 /* don't let CTLESC quote CTLNUL */ +#define SX_NOLONGJMP 0x40 /* don't longjmp on fatal error */ +#define SX_ARITHSUB 0x80 /* extracting $(( ... )) (currently unused) */ /* Remove backslashes which are quoting backquotes from STRING. Modifies STRING, and returns a pointer to it. */ @@ -52,8 +63,9 @@ extern void unquote_bang __P((char *)); /* Extract the $( construct in STRING, and return a new string. Start extracting at (SINDEX) as if we had just seen "$(". - Make (SINDEX) get the position just after the matching ")". */ -extern char *extract_command_subst __P((char *, int *)); + Make (SINDEX) get the position just after the matching ")". + XFLAGS is additional flags to pass to other extraction functions, */ +extern char *extract_command_subst __P((char *, int *, int)); /* Extract the $[ construct in STRING, and return a new string. Start extracting at (SINDEX) as if we had just seen "$[". @@ -84,6 +96,12 @@ extern char *string_list_dollar_star __P((WORD_LIST *)); /* Expand $@ into a single string, obeying POSIX rules. */ extern char *string_list_dollar_at __P((WORD_LIST *, int)); +/* Turn the positional paramters into a string, understanding quoting and + the various subtleties of using the first character of $IFS as the + separator. Calls string_list_dollar_at, string_list_dollar_star, and + string_list as appropriate. */ +extern char *string_list_pos_params __P((int, WORD_LIST *, int)); + /* Perform quoted null character removal on each element of LIST. This modifies LIST. */ extern void word_list_remove_quoted_nulls __P((WORD_LIST *)); @@ -92,6 +110,7 @@ extern void word_list_remove_quoted_nulls __P((WORD_LIST *)); STRING. */ extern WORD_LIST *list_string __P((char *, char *, int)); +extern char *ifs_firstchar __P((int *)); extern char *get_word_from_string __P((char **, char *, char **)); extern char *strip_trailing_ifs_whitespace __P((char *, char *, int)); @@ -135,7 +154,7 @@ extern WORD_LIST *expand_string_unsplit __P((char *, int)); extern WORD_LIST *expand_string_assignment __P((char *, int)); /* Expand a prompt string. */ -extern WORD_LIST *expand_prompt_string __P((char *, int)); +extern WORD_LIST *expand_prompt_string __P((char *, int, int)); /* Expand STRING just as if you were expanding a word. This also returns a list of words. Note that filename globbing is *NOT* done for word @@ -157,6 +176,9 @@ extern char *expand_arith_string __P((char *, int)); /* De-quote quoted characters in STRING. */ extern char *dequote_string __P((char *)); +/* De-quote CTLESC-escaped CTLESC or CTLNUL characters in STRING. */ +extern char *dequote_escapes __P((char *)); + /* De-quote quoted characters in each word in LIST. */ extern WORD_LIST *dequote_list __P((WORD_LIST *)); @@ -181,6 +203,12 @@ extern char *quote_string __P((char *)); in a string. */ extern char *quote_escapes __P((char *)); +/* And remove such quoted special characters. */ +extern char *remove_quoted_escapes __P((char *)); + +/* Remove CTLNUL characters from STRING unless they are quoted with CTLESC. */ +extern char *remove_quoted_nulls __P((char *)); + /* Perform quote removal on STRING. If QUOTED > 0, assume we are obeying the backslash quoting rules for within double quotes. */ extern char *string_quote_removal __P((char *, int)); @@ -219,9 +247,10 @@ extern WORD_LIST *expand_words_no_vars __P((WORD_LIST *)); command substitution, arithmetic expansion, and word splitting. */ extern WORD_LIST *expand_words_shellexp __P((WORD_LIST *)); -extern char *command_substitute __P((char *, int)); +extern WORD_DESC *command_substitute __P((char *, int)); extern char *pat_subst __P((char *, char *, char *, int)); +extern int fifos_pending __P((void)); extern void unlink_fifo_list __P((void)); extern WORD_LIST *list_string_with_quotes __P((char *)); @@ -235,11 +264,18 @@ extern char *remove_backslashes __P((char *)); extern char *cond_expand_word __P((WORD_DESC *, int)); #endif +/* Flags for skip_to_delim */ +#define SD_NOJMP 0x01 /* don't longjmp on fatal error. */ +#define SD_INVERT 0x02 /* look for chars NOT in passed set */ +#define SD_NOQUOTEDELIM 0x04 /* don't let single or double quotes act as delimiters */ +#define SD_NOSKIPCMD 0x08 /* don't skip over $(, <(, or >( command/process substitution */ + +extern int skip_to_delim __P((char *, int, char *, int)); + #if defined (READLINE) extern int char_is_quoted __P((char *, int)); extern int unclosed_pair __P((char *, int, char *)); -extern int skip_to_delim __P((char *, int, char *)); -extern WORD_LIST *split_at_delims __P((char *, int, char *, int, int *, int *)); +extern WORD_LIST *split_at_delims __P((char *, int, char *, int, int, int *, int *)); #endif /* Variables used to keep track of the characters in IFS. */ |