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Rename "line" to pattern_space to be more descriptive and closer to the POSIX description
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4957fc7a93
commit
c6adada158
@ -773,14 +773,14 @@ static sed_cmd_t *branch_to(const char *label)
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static void process_file(FILE *file)
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{
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char *line;
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char *pattern_space; /* Posix requires it be able to hold at least 8192 bytes */
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static int linenum = 0; /* GNU sed does not restart counting lines at EOF */
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unsigned int still_in_range = 0;
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int altered;
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int force_print;
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line = bb_get_chomped_line_from_file(file);
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if (line == NULL) {
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pattern_space = bb_get_chomped_line_from_file(file);
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if (pattern_space == NULL) {
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return;
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}
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@ -812,7 +812,7 @@ static void process_file(FILE *file)
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/* this line number is the first address we're looking for */
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(sed_cmd->beg_line && (sed_cmd->beg_line == linenum)) ||
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/* this line matches our first address regex */
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(sed_cmd->beg_match && (regexec(sed_cmd->beg_match, line, 0, NULL, 0) == 0)) ||
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(sed_cmd->beg_match && (regexec(sed_cmd->beg_match, pattern_space, 0, NULL, 0) == 0)) ||
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/* we are currently within the beginning & ending address range */
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still_in_range || ((sed_cmd->beg_line == -1) && (next_line == NULL))
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);
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@ -827,13 +827,13 @@ static void process_file(FILE *file)
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printf("%d\n", linenum);
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break;
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case 'P': { /* Write the current pattern space upto the first newline */
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char *tmp = strchr(line, '\n');
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char *tmp = strchr(pattern_space, '\n');
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if (tmp) {
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*tmp = '\0';
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}
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}
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case 'p': /* Write the current pattern space to output */
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puts(line);
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puts(pattern_space);
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break;
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case 'd':
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altered++;
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@ -850,8 +850,8 @@ static void process_file(FILE *file)
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* substitution
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*
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* s///p ONLY = always print successful substitutions, even if
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* the line is going to be printed anyway (line will be printed
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* twice).
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* the pattern_space is going to be printed anyway (pattern_space
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* will be printed twice).
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*
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* -n AND s///p = print ONLY a successful substitution ONE TIME;
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* no other lines are printed - this is the reason why the 'p'
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@ -862,24 +862,24 @@ static void process_file(FILE *file)
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/* HACK: escape newlines twice so regex can match them */
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{
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int offset = 0;
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while(strchr(line + offset, '\n') != NULL) {
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while(strchr(pattern_space + offset, '\n') != NULL) {
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char *tmp;
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line = xrealloc(line, strlen(line) + 2);
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tmp = strchr(line + offset, '\n');
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pattern_space = xrealloc(pattern_space, strlen(pattern_space) + 2);
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tmp = strchr(pattern_space + offset, '\n');
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memmove(tmp + 1, tmp, strlen(tmp) + 1);
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tmp[0] = '\\';
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tmp[1] = 'n';
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offset = tmp - line + 2;
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offset = tmp - pattern_space + 2;
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}
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}
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#endif
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/* we print the line once, unless we were told to be quiet */
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substituted = do_subst_command(sed_cmd, &line);
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/* we print the pattern_space once, unless we were told to be quiet */
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substituted = do_subst_command(sed_cmd, &pattern_space);
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#ifdef CONFIG_FEATURE_SED_EMBEDED_NEWLINE
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/* undo HACK: escape newlines twice so regex can match them */
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{
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char *tmp = line;
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char *tmp = pattern_space;
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while((tmp = strstr(tmp, "\\n")) != NULL) {
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memmove(tmp, tmp + 1, strlen(tmp + 1) + 1);
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@ -895,11 +895,11 @@ static void process_file(FILE *file)
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/* we also print the line if we were given the 'p' flag
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* (this is quite possibly the second printing) */
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if ((sed_cmd->sub_p) && altered) {
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puts(line);
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puts(pattern_space);
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}
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break;
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case 'a':
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puts(line);
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puts(pattern_space);
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fputs(sed_cmd->editline, stdout);
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altered++;
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break;
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@ -913,7 +913,7 @@ static void process_file(FILE *file)
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if ((sed_cmd->end_match == NULL && sed_cmd->end_line == 0)
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/* multi-address case */
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/* - matching text */
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|| (sed_cmd->end_match && (regexec(sed_cmd->end_match, line, 0, NULL, 0) == 0))
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|| (sed_cmd->end_match && (regexec(sed_cmd->end_match, pattern_space, 0, NULL, 0) == 0))
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/* - matching line numbers */
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|| (sed_cmd->end_line > 0 && sed_cmd->end_line == linenum))
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{
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@ -925,7 +925,7 @@ static void process_file(FILE *file)
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case 'r': {
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FILE *outfile;
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puts(line);
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puts(pattern_space);
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outfile = fopen(sed_cmd->filename, "r");
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if (outfile)
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bb_xprint_and_close_file(outfile);
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@ -941,16 +941,16 @@ static void process_file(FILE *file)
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next_line = NULL;
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break;
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case 'n': /* Read next line from input */
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free(line);
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line = next_line;
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free(pattern_space);
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pattern_space = next_line;
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next_line = bb_get_chomped_line_from_file(file);
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linenum++;
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break;
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case 'N': /* Append the next line to the current line */
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if (next_line) {
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line = realloc(line, strlen(line) + strlen(next_line) + 2);
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strcat(line, "\n");
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strcat(line, next_line);
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pattern_space = realloc(pattern_space, strlen(pattern_space) + strlen(next_line) + 2);
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strcat(pattern_space, "\n");
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strcat(pattern_space, next_line);
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next_line = bb_get_chomped_line_from_file(file);
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linenum++;
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}
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@ -965,18 +965,16 @@ static void process_file(FILE *file)
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break;
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case 'y': {
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int i;
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for (i = 0; line[i] != 0; i++) {
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for (i = 0; pattern_space[i] != 0; i++) {
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int j;
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for (j = 0; sed_cmd->translate[j] ;j += 2) {
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if (line[i] == sed_cmd->translate[j]) {
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line[i] = sed_cmd->translate[j + 1];
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if (pattern_space[i] == sed_cmd->translate[j]) {
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pattern_space[i] = sed_cmd->translate[j + 1];
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}
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}
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}
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}
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break;
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// case ':':
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// break;
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}
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}
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@ -993,7 +991,7 @@ static void process_file(FILE *file)
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/* this line number is the last address we're looking for or... */
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(sed_cmd->end_line && (sed_cmd->end_line == linenum)) ||
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/* this line matches our last address regex */
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(sed_cmd->end_match && (regexec(sed_cmd->end_match, line, 0, NULL, 0) == 0))
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(sed_cmd->end_match && (regexec(sed_cmd->end_match, pattern_space, 0, NULL, 0) == 0))
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)
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)
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) {
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@ -1015,11 +1013,11 @@ static void process_file(FILE *file)
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* line was altered (via a 'd'elete or 's'ubstitution), in which case
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* the altered line was already printed */
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if ((!be_quiet && !altered) || force_print){
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puts(line);
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puts(pattern_space);
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}
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free(line);
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line = next_line;
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} while (line);
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free(pattern_space);
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pattern_space = next_line;
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} while (pattern_space);
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}
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extern int sed_main(int argc, char **argv)
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