diff options
Diffstat (limited to 'editors')
| -rw-r--r-- | editors/sed.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/editors/sed.c b/editors/sed.c index 4ab7219..08c56a0 100644 --- a/editors/sed.c +++ b/editors/sed.c @@ -399,8 +399,8 @@ static char *parse_cmd_str(struct sed_cmd * const sed_cmd, const char *const cmd * part1 part2 part3 */ - /* first part (if present) is an address: either a number or a /regex/ */ - if (isdigit(cmdstr[idx]) || cmdstr[idx] == '/' || ( cmdstr[idx] == '\\' && cmdstr[idx+1] != '\\')) + /* first part (if present) is an address: either a '$', a number or a /regex/ */ + if ((cmdstr[idx] == '$') || (isdigit(cmdstr[idx])) || (cmdstr[idx] == '/') || ((cmdstr[idx] == '\\') && (cmdstr[idx+1] != '\\'))) idx = get_address(sed_cmd, cmdstr, &sed_cmd->beg_line, &sed_cmd->beg_match); /* second part (if present) will begin with a comma */ @@ -645,14 +645,23 @@ static int do_subst_command(const struct sed_cmd *sed_cmd, char **line) static void process_file(FILE *file) { - char *line = NULL; + char *line; static int linenum = 0; /* GNU sed does not restart counting lines at EOF */ unsigned int still_in_range = 0; int altered; int i; + line = get_line_from_file(file); + if (line == NULL) { + return; + } + /* go through every line in the file */ - while ((line = get_line_from_file(file)) != NULL) { + do { + char *next_line; + + /* Read one line in advance so we can act on the last line, the '$' address */ + next_line = get_line_from_file(file); chomp(line); linenum++; @@ -676,7 +685,7 @@ static void process_file(FILE *file) /* this line matches our first address regex */ (sed_cmd->beg_match && (regexec(sed_cmd->beg_match, line, 0, NULL, 0) == 0)) || /* we are currently within the beginning & ending address range */ - still_in_range + still_in_range || ((sed_cmd->beg_line == -1) && (next_line == NULL)) ); if (sed_cmd->invert ^ matched) { @@ -811,7 +820,8 @@ static void process_file(FILE *file) puts(line); free(line); - } + line = next_line; + } while (line); } extern int sed_main(int argc, char **argv) |