diff options
Diffstat (limited to 'editors/sed.c')
| -rw-r--r-- | editors/sed.c | 66 |
1 files changed, 32 insertions, 34 deletions
diff --git a/editors/sed.c b/editors/sed.c index c039249..834f066 100644 --- a/editors/sed.c +++ b/editors/sed.c @@ -773,14 +773,14 @@ static sed_cmd_t *branch_to(const char *label) static void process_file(FILE *file) { - char *line; + char *pattern_space; /* Posix requires it be able to hold at least 8192 bytes */ static int linenum = 0; /* GNU sed does not restart counting lines at EOF */ unsigned int still_in_range = 0; int altered; int force_print; - line = bb_get_chomped_line_from_file(file); - if (line == NULL) { + pattern_space = bb_get_chomped_line_from_file(file); + if (pattern_space == NULL) { return; } @@ -812,7 +812,7 @@ static void process_file(FILE *file) /* this line number is the first address we're looking for */ (sed_cmd->beg_line && (sed_cmd->beg_line == linenum)) || /* this line matches our first address regex */ - (sed_cmd->beg_match && (regexec(sed_cmd->beg_match, line, 0, NULL, 0) == 0)) || + (sed_cmd->beg_match && (regexec(sed_cmd->beg_match, pattern_space, 0, NULL, 0) == 0)) || /* we are currently within the beginning & ending address range */ still_in_range || ((sed_cmd->beg_line == -1) && (next_line == NULL)) ); @@ -827,13 +827,13 @@ static void process_file(FILE *file) printf("%d\n", linenum); break; case 'P': { /* Write the current pattern space upto the first newline */ - char *tmp = strchr(line, '\n'); + char *tmp = strchr(pattern_space, '\n'); if (tmp) { *tmp = '\0'; } } case 'p': /* Write the current pattern space to output */ - puts(line); + puts(pattern_space); break; case 'd': altered++; @@ -850,8 +850,8 @@ static void process_file(FILE *file) * substitution * * s///p ONLY = always print successful substitutions, even if - * the line is going to be printed anyway (line will be printed - * twice). + * the pattern_space is going to be printed anyway (pattern_space + * will be printed twice). * * -n AND s///p = print ONLY a successful substitution ONE TIME; * no other lines are printed - this is the reason why the 'p' @@ -862,24 +862,24 @@ static void process_file(FILE *file) /* HACK: escape newlines twice so regex can match them */ { int offset = 0; - while(strchr(line + offset, '\n') != NULL) { + while(strchr(pattern_space + offset, '\n') != NULL) { char *tmp; - line = xrealloc(line, strlen(line) + 2); - tmp = strchr(line + offset, '\n'); + pattern_space = xrealloc(pattern_space, strlen(pattern_space) + 2); + tmp = strchr(pattern_space + offset, '\n'); memmove(tmp + 1, tmp, strlen(tmp) + 1); tmp[0] = '\\'; tmp[1] = 'n'; - offset = tmp - line + 2; + offset = tmp - pattern_space + 2; } } #endif - /* we print the line once, unless we were told to be quiet */ - substituted = do_subst_command(sed_cmd, &line); + /* we print the pattern_space once, unless we were told to be quiet */ + substituted = do_subst_command(sed_cmd, &pattern_space); #ifdef CONFIG_FEATURE_SED_EMBEDED_NEWLINE /* undo HACK: escape newlines twice so regex can match them */ { - char *tmp = line; + char *tmp = pattern_space; while((tmp = strstr(tmp, "\\n")) != NULL) { memmove(tmp, tmp + 1, strlen(tmp + 1) + 1); @@ -895,11 +895,11 @@ static void process_file(FILE *file) /* we also print the line if we were given the 'p' flag * (this is quite possibly the second printing) */ if ((sed_cmd->sub_p) && altered) { - puts(line); + puts(pattern_space); } break; case 'a': - puts(line); + puts(pattern_space); fputs(sed_cmd->editline, stdout); altered++; break; @@ -913,7 +913,7 @@ static void process_file(FILE *file) if ((sed_cmd->end_match == NULL && sed_cmd->end_line == 0) /* multi-address case */ /* - matching text */ - || (sed_cmd->end_match && (regexec(sed_cmd->end_match, line, 0, NULL, 0) == 0)) + || (sed_cmd->end_match && (regexec(sed_cmd->end_match, pattern_space, 0, NULL, 0) == 0)) /* - matching line numbers */ || (sed_cmd->end_line > 0 && sed_cmd->end_line == linenum)) { @@ -925,7 +925,7 @@ static void process_file(FILE *file) case 'r': { FILE *outfile; - puts(line); + puts(pattern_space); outfile = fopen(sed_cmd->filename, "r"); if (outfile) bb_xprint_and_close_file(outfile); @@ -941,16 +941,16 @@ static void process_file(FILE *file) next_line = NULL; break; case 'n': /* Read next line from input */ - free(line); - line = next_line; + free(pattern_space); + pattern_space = next_line; next_line = bb_get_chomped_line_from_file(file); linenum++; break; case 'N': /* Append the next line to the current line */ if (next_line) { - line = realloc(line, strlen(line) + strlen(next_line) + 2); - strcat(line, "\n"); - strcat(line, next_line); + pattern_space = realloc(pattern_space, strlen(pattern_space) + strlen(next_line) + 2); + strcat(pattern_space, "\n"); + strcat(pattern_space, next_line); next_line = bb_get_chomped_line_from_file(file); linenum++; } @@ -965,18 +965,16 @@ static void process_file(FILE *file) break; case 'y': { int i; - for (i = 0; line[i] != 0; i++) { + for (i = 0; pattern_space[i] != 0; i++) { int j; for (j = 0; sed_cmd->translate[j] ;j += 2) { - if (line[i] == sed_cmd->translate[j]) { - line[i] = sed_cmd->translate[j + 1]; + if (pattern_space[i] == sed_cmd->translate[j]) { + pattern_space[i] = sed_cmd->translate[j + 1]; } } } } break; -// case ':': -// break; } } @@ -993,7 +991,7 @@ static void process_file(FILE *file) /* this line number is the last address we're looking for or... */ (sed_cmd->end_line && (sed_cmd->end_line == linenum)) || /* this line matches our last address regex */ - (sed_cmd->end_match && (regexec(sed_cmd->end_match, line, 0, NULL, 0) == 0)) + (sed_cmd->end_match && (regexec(sed_cmd->end_match, pattern_space, 0, NULL, 0) == 0)) ) ) ) { @@ -1015,11 +1013,11 @@ static void process_file(FILE *file) * line was altered (via a 'd'elete or 's'ubstitution), in which case * the altered line was already printed */ if ((!be_quiet && !altered) || force_print){ - puts(line); + puts(pattern_space); } - free(line); - line = next_line; - } while (line); + free(pattern_space); + pattern_space = next_line; + } while (pattern_space); } extern int sed_main(int argc, char **argv) |