From d18a3a20dbafc4023b1c636b4e9b4bb80902c1e8 Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Wed, 25 Oct 2006 12:46:03 +0000 Subject: use skip_whitespace where appropriate --- editors/awk.c | 2 +- editors/sed.c | 167 ++++++++++++++++++++++++++++++---------------------------- 2 files changed, 86 insertions(+), 83 deletions(-) (limited to 'editors') diff --git a/editors/awk.c b/editors/awk.c index e91c37678..b776dd796 100644 --- a/editors/awk.c +++ b/editors/awk.c @@ -1470,7 +1470,7 @@ static int awk_split(char *s, node *spl, char **slist) } } else { /* space split */ while (*s) { - while (isspace(*s)) s++; + s = skip_whitespace(s); if (! *s) break; n++; while (*s && !isspace(*s)) diff --git a/editors/sed.c b/editors/sed.c index 30f35ce22..e26141571 100644 --- a/editors/sed.c +++ b/editors/sed.c @@ -63,29 +63,29 @@ /* Each sed command turns into one of these structures. */ typedef struct sed_cmd_s { - /* Ordered by alignment requirements: currently 36 bytes on x86 */ + /* Ordered by alignment requirements: currently 36 bytes on x86 */ - /* address storage */ - regex_t *beg_match; /* sed -e '/match/cmd' */ - regex_t *end_match; /* sed -e '/match/,/end_match/cmd' */ - regex_t *sub_match; /* For 's/sub_match/string/' */ - int beg_line; /* 'sed 1p' 0 == apply commands to all lines */ - int end_line; /* 'sed 1,3p' 0 == one line only. -1 = last line ($) */ + /* address storage */ + regex_t *beg_match; /* sed -e '/match/cmd' */ + regex_t *end_match; /* sed -e '/match/,/end_match/cmd' */ + regex_t *sub_match; /* For 's/sub_match/string/' */ + int beg_line; /* 'sed 1p' 0 == apply commands to all lines */ + int end_line; /* 'sed 1,3p' 0 == one line only. -1 = last line ($) */ - FILE *file; /* File (sw) command writes to, -1 for none. */ - char *string; /* Data string for (saicytb) commands. */ + FILE *file; /* File (sw) command writes to, -1 for none. */ + char *string; /* Data string for (saicytb) commands. */ - unsigned short which_match; /* (s) Which match to replace (0 for all) */ + unsigned short which_match; /* (s) Which match to replace (0 for all) */ - /* Bitfields (gcc won't group them if we don't) */ - unsigned int invert:1; /* the '!' after the address */ - unsigned int in_match:1; /* Next line also included in match? */ - unsigned int no_newline:1; /* Last line written by (sw) had no '\n' */ - unsigned int sub_p:1; /* (s) print option */ + /* Bitfields (gcc won't group them if we don't) */ + unsigned int invert:1; /* the '!' after the address */ + unsigned int in_match:1; /* Next line also included in match? */ + unsigned int no_newline:1; /* Last line written by (sw) had no '\n' */ + unsigned int sub_p:1; /* (s) print option */ - /* GENERAL FIELDS */ - char cmd; /* The command char: abcdDgGhHilnNpPqrstwxy:={} */ - struct sed_cmd_s *next; /* Next command (linked list, NULL terminated) */ + /* GENERAL FIELDS */ + char cmd; /* The command char: abcdDgGhHilnNpPqrstwxy:={} */ + struct sed_cmd_s *next; /* Next command (linked list, NULL terminated) */ } sed_cmd_t; static const char *const semicolon_whitespace = "; \n\r\t\v"; @@ -162,7 +162,7 @@ void sed_free_and_close_stuff(void) static void cleanup_outname(void) { - if(bbg.outname) unlink(bbg.outname); + if(bbg.outname) unlink(bbg.outname); } /* strdup, replacing "\n" with '\n', and "\delimiter" with 'delimiter' */ @@ -343,36 +343,36 @@ static int parse_subst_cmd(sed_cmd_t *sed_cmd, char *substr) if(isspace(substr[idx])) continue; switch (substr[idx]) { - /* Replace all occurrences */ - case 'g': - if (match[0] != '^') sed_cmd->which_match = 0; - break; - /* Print pattern space */ - case 'p': - sed_cmd->sub_p = 1; - break; - /* Write to file */ - case 'w': - { - char *temp; - idx+=parse_file_cmd(sed_cmd,substr+idx,&temp); + /* Replace all occurrences */ + case 'g': + if (match[0] != '^') sed_cmd->which_match = 0; + break; + /* Print pattern space */ + case 'p': + sed_cmd->sub_p = 1; + break; + /* Write to file */ + case 'w': + { + char *temp; + idx+=parse_file_cmd(sed_cmd,substr+idx,&temp); - break; - } - /* Ignore case (gnu exension) */ - case 'I': - cflags |= REG_ICASE; - break; - /* Comment */ - case '#': - while(substr[++idx]); - /* Fall through */ - /* End of command */ - case ';': - case '}': - goto out; - default: - bb_error_msg_and_die("bad option in substitution expression"); + break; + } + /* Ignore case (gnu exension) */ + case 'I': + cflags |= REG_ICASE; + break; + /* Comment */ + case '#': + while(substr[++idx]); + /* Fall through */ + /* End of command */ + case ';': + case '}': + goto out; + default: + bb_error_msg_and_die("bad option in substitution expression"); } } out: @@ -420,7 +420,7 @@ static char *parse_cmd_args(sed_cmd_t *sed_cmd, char *cmdstr) } else if (strchr(":btT", sed_cmd->cmd)) { int length; - while(isspace(*cmdstr)) cmdstr++; + cmdstr = skip_whitespace(cmdstr); length = strcspn(cmdstr, semicolon_whitespace); if (length) { sed_cmd->string = xstrndup(cmdstr, length); @@ -517,7 +517,7 @@ static void add_cmd(char *cmdstr) } /* skip whitespace before the command */ - while (isspace(*cmdstr)) cmdstr++; + cmdstr = skip_whitespace(cmdstr); /* Check for inversion flag */ if (*cmdstr == '!') { @@ -525,7 +525,7 @@ static void add_cmd(char *cmdstr) cmdstr++; /* skip whitespace before the command */ - while (isspace(*cmdstr)) cmdstr++; + cmdstr = skip_whitespace(cmdstr); } /* last part (mandatory) will be a command */ @@ -724,7 +724,7 @@ static int puts_maybe_newline(char *s, FILE *file, int missing_newline, int no_n fputs(s,file); if(!no_newline) fputc('\n',file); - if(ferror(file)) { + if(ferror(file)) { xfunc_error_retval = 4; /* It's what gnu sed exits with... */ bb_error_msg_and_die(bb_msg_write_error); } @@ -1167,40 +1167,43 @@ int sed_main(int argc, char **argv) FILE *file; for (i = optind; i < argc; i++) { + struct stat statbuf; + int nonstdoutfd; + if(!strcmp(argv[i], "-") && !bbg.in_place) { add_input_file(stdin); process_files(); - } else { - file = bb_wfopen(argv[i], "r"); - if (file) { - if(bbg.in_place) { - struct stat statbuf; - int nonstdoutfd; - - bbg.outname=xstrndup(argv[i],strlen(argv[i])+6); - strcat(bbg.outname,"XXXXXX"); - if(-1==(nonstdoutfd=mkstemp(bbg.outname))) - bb_error_msg_and_die("no temp file"); - bbg.nonstdout=fdopen(nonstdoutfd,"w"); - - /* Set permissions of output file */ - - fstat(fileno(file),&statbuf); - fchmod(nonstdoutfd,statbuf.st_mode); - add_input_file(file); - process_files(); - fclose(bbg.nonstdout); - - bbg.nonstdout=stdout; - unlink(argv[i]); - rename(bbg.outname,argv[i]); - free(bbg.outname); - bbg.outname=0; - } else add_input_file(file); - } else { - status = EXIT_FAILURE; - } + continue; } + file = bb_wfopen(argv[i], "r"); + if (!file) { + status = EXIT_FAILURE; + continue; + } + if(!bbg.in_place) { + add_input_file(file); + continue; + } + + bbg.outname=xstrndup(argv[i],strlen(argv[i])+6); + strcat(bbg.outname,"XXXXXX"); + if(-1==(nonstdoutfd=mkstemp(bbg.outname))) + bb_error_msg_and_die("no temp file"); + bbg.nonstdout=fdopen(nonstdoutfd,"w"); + + /* Set permissions of output file */ + + fstat(fileno(file),&statbuf); + fchmod(nonstdoutfd,statbuf.st_mode); + add_input_file(file); + process_files(); + fclose(bbg.nonstdout); + + bbg.nonstdout=stdout; + unlink(argv[i]); + rename(bbg.outname,argv[i]); + free(bbg.outname); + bbg.outname=0; } if(bbg.input_file_count>bbg.current_input_file) process_files(); 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