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-rw-r--r--editors/sed.c687
1 files changed, 354 insertions, 333 deletions
diff --git a/editors/sed.c b/editors/sed.c
index e261415..3e33529 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -131,7 +131,7 @@ void sed_free_and_close_stuff(void)
while (sed_cmd) {
sed_cmd_t *sed_cmd_next = sed_cmd->next;
- if(sed_cmd->file)
+ if (sed_cmd->file)
xprint_and_close_file(sed_cmd->file);
if (sed_cmd->beg_match) {
@@ -151,9 +151,9 @@ void sed_free_and_close_stuff(void)
sed_cmd = sed_cmd_next;
}
- if(bbg.hold_space) free(bbg.hold_space);
+ if (bbg.hold_space) free(bbg.hold_space);
- while(bbg.current_input_file<bbg.input_file_count)
+ while (bbg.current_input_file < bbg.input_file_count)
fclose(bbg.input_file_list[bbg.current_input_file++]);
}
#endif
@@ -162,31 +162,31 @@ 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' */
static void parse_escapes(char *dest, char *string, int len, char from, char to)
{
- int i=0;
+ int i = 0;
- while(i<len) {
- if(string[i] == '\\') {
- if(!to || string[i+1] == from) {
+ while (i < len) {
+ if (string[i] == '\\') {
+ if (!to || string[i+1] == from) {
*(dest++) = to ? to : string[i+1];
- i+=2;
+ i += 2;
continue;
- } else *(dest++)=string[i++];
+ } else *(dest++) = string[i++];
}
*(dest++) = string[i++];
}
- *dest=0;
+ *dest = 0;
}
static char *copy_parsing_escapes(char *string, int len)
{
- char *dest=xmalloc(len+1);
+ char *dest = xmalloc(len+1);
parse_escapes(dest,string,len,'n','\n');
return dest;
@@ -243,7 +243,7 @@ static int parse_regex_delim(char *cmdstr, char **match, char **replace)
* (typically a 'slash') is now our regexp delimiter... */
if (*cmdstr == '\0')
bb_error_msg_and_die("bad format in substitution expression");
- delimiter = *(cmdstr_ptr++);
+ delimiter = *cmdstr_ptr++;
/* save the match string */
idx = index_of_next_unescaped_regexp_delim(delimiter, cmdstr_ptr);
@@ -275,11 +275,11 @@ static int get_address(char *my_str, int *linenum, regex_t ** regex)
char delimiter;
char *temp;
- if (*my_str == '\\') delimiter = *(++pos);
- else delimiter = '/';
+ delimiter = '/';
+ if (*my_str == '\\') delimiter = *++pos;
next = index_of_next_unescaped_regexp_delim(delimiter, ++pos);
temp = copy_parsing_escapes(pos,next);
- *regex = (regex_t *) xmalloc(sizeof(regex_t));
+ *regex = xmalloc(sizeof(regex_t));
xregcomp(*regex, temp, bbg.regex_type|REG_NEWLINE);
free(temp);
/* Move position to next character after last delimiter */
@@ -291,17 +291,19 @@ static int get_address(char *my_str, int *linenum, regex_t ** regex)
/* Grab a filename. Whitespace at start is skipped, then goes to EOL. */
static int parse_file_cmd(sed_cmd_t *sed_cmd, char *filecmdstr, char **retval)
{
- int start = 0, idx, hack=0;
+ int start = 0, idx, hack = 0;
/* Skip whitespace, then grab filename to end of line */
while (isspace(filecmdstr[start])) start++;
- idx=start;
- while(filecmdstr[idx] && filecmdstr[idx]!='\n') idx++;
+ idx = start;
+ while (filecmdstr[idx] && filecmdstr[idx] != '\n') idx++;
+
/* If lines glued together, put backslash back. */
- if(filecmdstr[idx]=='\n') hack=1;
- if(idx==start) bb_error_msg_and_die("Empty filename");
+ if (filecmdstr[idx] == '\n') hack = 1;
+ if (idx == start)
+ bb_error_msg_and_die("empty filename");
*retval = xstrndup(filecmdstr+start, idx-start+hack+1);
- if(hack) *(idx+*retval)='\\';
+ if (hack) (*retval)[idx] = '\\';
return idx;
}
@@ -327,20 +329,20 @@ static int parse_subst_cmd(sed_cmd_t *sed_cmd, char *substr)
/* process the flags */
- sed_cmd->which_match=1;
+ sed_cmd->which_match = 1;
while (substr[++idx]) {
/* Parse match number */
- if(isdigit(substr[idx])) {
- if(match[0]!='^') {
+ if (isdigit(substr[idx])) {
+ if (match[0] != '^') {
/* Match 0 treated as all, multiple matches we take the last one. */
- char *pos=substr+idx;
- sed_cmd->which_match=(unsigned short)strtol(substr+idx,&pos,10);
- idx=pos-substr;
+ char *pos = substr+idx;
+ sed_cmd->which_match = (unsigned short)strtol(substr+idx,&pos,10);
+ idx = pos-substr;
}
continue;
}
/* Skip spaces */
- if(isspace(substr[idx])) continue;
+ if (isspace(substr[idx])) continue;
switch (substr[idx]) {
/* Replace all occurrences */
@@ -355,7 +357,7 @@ static int parse_subst_cmd(sed_cmd_t *sed_cmd, char *substr)
case 'w':
{
char *temp;
- idx+=parse_file_cmd(sed_cmd,substr+idx,&temp);
+ idx += parse_file_cmd(sed_cmd,substr+idx,&temp);
break;
}
@@ -365,7 +367,7 @@ static int parse_subst_cmd(sed_cmd_t *sed_cmd, char *substr)
break;
/* Comment */
case '#':
- while(substr[++idx]);
+ while (substr[++idx]) /*skip all*/;
/* Fall through */
/* End of command */
case ';':
@@ -393,29 +395,32 @@ out:
static char *parse_cmd_args(sed_cmd_t *sed_cmd, char *cmdstr)
{
/* handle (s)ubstitution command */
- if (sed_cmd->cmd == 's') cmdstr += parse_subst_cmd(sed_cmd, cmdstr);
+ if (sed_cmd->cmd == 's')
+ cmdstr += parse_subst_cmd(sed_cmd, cmdstr);
/* handle edit cmds: (a)ppend, (i)nsert, and (c)hange */
else if (strchr("aic", sed_cmd->cmd)) {
if ((sed_cmd->end_line || sed_cmd->end_match) && sed_cmd->cmd != 'c')
bb_error_msg_and_die
("only a beginning address can be specified for edit commands");
- for(;;) {
- if(*cmdstr=='\n' || *cmdstr=='\\') {
+ for (;;) {
+ if (*cmdstr == '\n' || *cmdstr == '\\') {
+ cmdstr++;
+ break;
+ } else if (isspace(*cmdstr))
cmdstr++;
+ else
break;
- } else if(isspace(*cmdstr)) cmdstr++;
- else break;
}
sed_cmd->string = xstrdup(cmdstr);
parse_escapes(sed_cmd->string,sed_cmd->string,strlen(cmdstr),0,0);
cmdstr += strlen(cmdstr);
/* handle file cmds: (r)ead */
- } else if(strchr("rw", sed_cmd->cmd)) {
+ } else if (strchr("rw", sed_cmd->cmd)) {
if (sed_cmd->end_line || sed_cmd->end_match)
- bb_error_msg_and_die("Command only uses one address");
+ bb_error_msg_and_die("command only uses one address");
cmdstr += parse_file_cmd(sed_cmd, cmdstr, &sed_cmd->string);
- if(sed_cmd->cmd=='w')
- sed_cmd->file=xfopen(sed_cmd->string,"w");
+ if (sed_cmd->cmd == 'w')
+ sed_cmd->file = xfopen(sed_cmd->string,"w");
/* handle branch commands */
} else if (strchr(":btT", sed_cmd->cmd)) {
int length;
@@ -430,17 +435,17 @@ static char *parse_cmd_args(sed_cmd_t *sed_cmd, char *cmdstr)
/* translation command */
else if (sed_cmd->cmd == 'y') {
char *match, *replace;
- int i=cmdstr[0];
+ int i = cmdstr[0];
- cmdstr+=parse_regex_delim(cmdstr, &match, &replace)+1;
+ cmdstr += parse_regex_delim(cmdstr, &match, &replace)+1;
/* \n already parsed, but \delimiter needs unescaping. */
parse_escapes(match,match,strlen(match),i,i);
parse_escapes(replace,replace,strlen(replace),i,i);
sed_cmd->string = xzalloc((strlen(match) + 1) * 2);
for (i = 0; match[i] && replace[i]; i++) {
- sed_cmd->string[i * 2] = match[i];
- sed_cmd->string[(i * 2) + 1] = replace[i];
+ sed_cmd->string[i*2] = match[i];
+ sed_cmd->string[i*2+1] = replace[i];
}
free(match);
free(replace);
@@ -449,11 +454,11 @@ static char *parse_cmd_args(sed_cmd_t *sed_cmd, char *cmdstr)
* then it must be an invalid command.
*/
else if (strchr("dDgGhHlnNpPqx={}", sed_cmd->cmd) == 0) {
- bb_error_msg_and_die("Unsupported command %c", sed_cmd->cmd);
+ bb_error_msg_and_die("unsupported command %c", sed_cmd->cmd);
}
/* give back whatever's left over */
- return (cmdstr);
+ return cmdstr;
}
@@ -472,26 +477,29 @@ static void add_cmd(char *cmdstr)
}
/* If this line ends with backslash, request next line. */
- temp=strlen(cmdstr);
- if(temp && cmdstr[temp-1]=='\\') {
- if (!bbg.add_cmd_line) bbg.add_cmd_line = xstrdup(cmdstr);
+ temp = strlen(cmdstr);
+ if (temp && cmdstr[temp-1] == '\\') {
+ if (!bbg.add_cmd_line)
+ bbg.add_cmd_line = xstrdup(cmdstr);
bbg.add_cmd_line[temp-1] = 0;
return;
}
/* Loop parsing all commands in this line. */
- while(*cmdstr) {
+ while (*cmdstr) {
/* Skip leading whitespace and semicolons */
cmdstr += strspn(cmdstr, semicolon_whitespace);
/* If no more commands, exit. */
- if(!*cmdstr) break;
+ if (!*cmdstr) break;
/* if this is a comment, jump past it and keep going */
if (*cmdstr == '#') {
/* "#n" is the same as using -n on the command line */
- if (cmdstr[1] == 'n') bbg.be_quiet++;
- if(!(cmdstr=strpbrk(cmdstr, "\n\r"))) break;
+ if (cmdstr[1] == 'n')
+ bbg.be_quiet++;
+ cmdstr = strpbrk(cmdstr, "\n\r");
+ if (!cmdstr) break;
continue;
}
@@ -512,7 +520,8 @@ static void add_cmd(char *cmdstr)
cmdstr++;
idx = get_address(cmdstr, &sed_cmd->end_line, &sed_cmd->end_match);
- if (!idx) bb_error_msg_and_die("no address after comma");
+ if (!idx)
+ bb_error_msg_and_die("no address after comma");
cmdstr += idx;
}
@@ -529,7 +538,8 @@ static void add_cmd(char *cmdstr)
}
/* last part (mandatory) will be a command */
- if (!*cmdstr) bb_error_msg_and_die("missing command");
+ if (!*cmdstr)
+ bb_error_msg_and_die("missing command");
sed_cmd->cmd = *(cmdstr++);
cmdstr = parse_cmd_args(sed_cmd, cmdstr);
@@ -549,10 +559,10 @@ static void add_cmd(char *cmdstr)
static void pipe_putc(char c)
{
- if(bbg.pipeline.idx==bbg.pipeline.len) {
+ if (bbg.pipeline.idx == bbg.pipeline.len) {
bbg.pipeline.buf = xrealloc(bbg.pipeline.buf,
- bbg.pipeline.len + PIPE_GROW);
- bbg.pipeline.len+=PIPE_GROW;
+ bbg.pipeline.len + PIPE_GROW);
+ bbg.pipeline.len += PIPE_GROW;
}
bbg.pipeline.buf[bbg.pipeline.idx++] = c;
}
@@ -564,22 +574,26 @@ static void do_subst_w_backrefs(char *line, char *replace)
/* go through the replacement string */
for (i = 0; replace[i]; i++) {
/* if we find a backreference (\1, \2, etc.) print the backref'ed * text */
- if (replace[i] == '\\' && replace[i+1]>='0' && replace[i+1]<='9') {
- int backref=replace[++i]-'0';
+ if (replace[i] == '\\' && replace[i+1] >= '0' && replace[i+1] <= '9') {
+ int backref = replace[++i]-'0';
/* print out the text held in bbg.regmatch[backref] */
- if(bbg.regmatch[backref].rm_so != -1)
- for (j = bbg.regmatch[backref].rm_so;
- j < bbg.regmatch[backref].rm_eo; j++) pipe_putc(line[j]);
+ if (bbg.regmatch[backref].rm_so != -1) {
+ j = bbg.regmatch[backref].rm_so;
+ while (j < bbg.regmatch[backref].rm_eo)
+ pipe_putc(line[j++]);
+ }
}
/* if we find a backslash escaped character, print the character */
else if (replace[i] == '\\') pipe_putc(replace[++i]);
/* if we find an unescaped '&' print out the whole matched text. */
- else if (replace[i] == '&')
- for (j = bbg.regmatch[0].rm_so; j < bbg.regmatch[0].rm_eo; j++)
- pipe_putc(line[j]);
+ else if (replace[i] == '&') {
+ j = bbg.regmatch[0].rm_so;
+ while (j < bbg.regmatch[0].rm_eo)
+ pipe_putc(line[j++]);
+ }
/* Otherwise just output the character. */
else pipe_putc(replace[i]);
}
@@ -589,24 +603,25 @@ static int do_subst_command(sed_cmd_t *sed_cmd, char **line)
{
char *oldline = *line;
int altered = 0;
- int match_count=0;
+ int match_count = 0;
regex_t *current_regex;
/* Handle empty regex. */
if (sed_cmd->sub_match == NULL) {
current_regex = bbg.previous_regex_ptr;
- if(!current_regex)
+ if (!current_regex)
bb_error_msg_and_die("No previous regexp.");
- } else bbg.previous_regex_ptr = current_regex = sed_cmd->sub_match;
+ } else
+ bbg.previous_regex_ptr = current_regex = sed_cmd->sub_match;
/* Find the first match */
- if(REG_NOMATCH==regexec(current_regex, oldline, 10, bbg.regmatch, 0))
+ if (REG_NOMATCH == regexec(current_regex, oldline, 10, bbg.regmatch, 0))
return 0;
/* Initialize temporary output buffer. */
- bbg.pipeline.buf=xmalloc(PIPE_GROW);
- bbg.pipeline.len=PIPE_GROW;
- bbg.pipeline.idx=0;
+ bbg.pipeline.buf = xmalloc(PIPE_GROW);
+ bbg.pipeline.len = PIPE_GROW;
+ bbg.pipeline.idx = 0;
/* Now loop through, substituting for matches */
do {
@@ -616,8 +631,8 @@ static int do_subst_command(sed_cmd_t *sed_cmd, char **line)
echo " a.b" | busybox sed 's [^ .]* x g'
The match_count check is so not to break
echo "hi" | busybox sed 's/^/!/g' */
- if(!bbg.regmatch[0].rm_so && !bbg.regmatch[0].rm_eo && match_count) {
- pipe_putc(*(oldline++));
+ if (!bbg.regmatch[0].rm_so && !bbg.regmatch[0].rm_eo && match_count) {
+ pipe_putc(*oldline++);
continue;
}
@@ -625,14 +640,15 @@ static int do_subst_command(sed_cmd_t *sed_cmd, char **line)
/* If we aren't interested in this match, output old line to
end of match and continue */
- if(sed_cmd->which_match && sed_cmd->which_match!=match_count) {
- for(i=0;i<bbg.regmatch[0].rm_eo;i++)
- pipe_putc(*(oldline++));
+ if (sed_cmd->which_match && sed_cmd->which_match!=match_count) {
+ for (i = 0; i < bbg.regmatch[0].rm_eo; i++)
+ pipe_putc(*oldline++);
continue;
}
/* print everything before the match */
- for (i = 0; i < bbg.regmatch[0].rm_so; i++) pipe_putc(oldline[i]);
+ for (i = 0; i < bbg.regmatch[0].rm_so; i++)
+ pipe_putc(oldline[i]);
/* then print the substitution string */
do_subst_w_backrefs(oldline, sed_cmd->string);
@@ -648,7 +664,8 @@ static int do_subst_command(sed_cmd_t *sed_cmd, char **line)
/* Copy rest of string into output pipeline */
- while(*oldline) pipe_putc(*(oldline++));
+ while (*oldline)
+ pipe_putc(*oldline++);
pipe_putc(0);
free(*line);
@@ -662,11 +679,11 @@ static sed_cmd_t *branch_to(char *label)
sed_cmd_t *sed_cmd;
for (sed_cmd = bbg.sed_cmd_head.next; sed_cmd; sed_cmd = sed_cmd->next) {
- if ((sed_cmd->cmd == ':') && (sed_cmd->string) && (strcmp(sed_cmd->string, label) == 0)) {
- return (sed_cmd);
+ if (sed_cmd->cmd == ':' && sed_cmd->string && !strcmp(sed_cmd->string, label)) {
+ return sed_cmd;
}
}
- bb_error_msg_and_die("Can't find label for jump to `%s'", label);
+ bb_error_msg_and_die("can't find label for jump to '%s'", label);
}
static void append(char *s)
@@ -679,7 +696,7 @@ static void flush_append(void)
char *data;
/* Output appended lines. */
- while((data = (char *)llist_pop(&bbg.append_head))) {
+ while ((data = (char *)llist_pop(&bbg.append_head))) {
fprintf(bbg.nonstdout,"%s\n",data);
free(data);
}
@@ -687,7 +704,7 @@ static void flush_append(void)
static void add_input_file(FILE *file)
{
- bbg.input_file_list=xrealloc(bbg.input_file_list,
+ bbg.input_file_list = xrealloc(bbg.input_file_list,
(bbg.input_file_count + 1) * sizeof(FILE *));
bbg.input_file_list[bbg.input_file_count++] = file;
}
@@ -697,18 +714,19 @@ static void add_input_file(FILE *file)
*/
static char *get_next_line(int *no_newline)
{
- char *temp=NULL;
+ char *temp = NULL;
int len;
flush_append();
- while (bbg.current_input_file<bbg.input_file_count) {
+ while (bbg.current_input_file < bbg.input_file_count) {
temp = bb_get_chunk_from_file(bbg.input_file_list[bbg.current_input_file],&len);
if (temp) {
- *no_newline = !(len && temp[len-1]=='\n');
+ *no_newline = !(len && temp[len-1] == '\n');
if (!*no_newline) temp[len-1] = 0;
break;
// Close this file and advance to next one
- } else fclose(bbg.input_file_list[bbg.current_input_file++]);
+ } else
+ fclose(bbg.input_file_list[bbg.current_input_file++]);
}
return temp;
@@ -720,11 +738,11 @@ static char *get_next_line(int *no_newline)
static int puts_maybe_newline(char *s, FILE *file, int missing_newline, int no_newline)
{
- if(missing_newline) fputc('\n',file);
+ if (missing_newline) fputc('\n',file);
fputs(s,file);
- if(!no_newline) fputc('\n',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);
}
@@ -739,20 +757,21 @@ static int puts_maybe_newline(char *s, FILE *file, int missing_newline, int no_n
static void process_files(void)
{
char *pattern_space, *next_line;
- int linenum = 0, missing_newline=0;
- int no_newline,next_no_newline=0;
+ int linenum = 0, missing_newline = 0;
+ int no_newline,next_no_newline = 0;
/* Prime the pump */
next_line = get_next_line(&next_no_newline);
/* go through every line in each file */
- for(;;) {
+ for (;;) {
sed_cmd_t *sed_cmd;
- int substituted=0;
+ int substituted = 0;
/* Advance to next line. Stop if out of lines. */
- if(!(pattern_space=next_line)) break;
- no_newline=next_no_newline;
+ pattern_space = next_line;
+ if (!pattern_space) break;
+ no_newline = next_no_newline;
/* Read one line in advance so we can act on the last line,
* the '$' address */
@@ -760,8 +779,7 @@ static void process_files(void)
linenum++;
restart:
/* for every line, go through all the commands */
- for (sed_cmd = bbg.sed_cmd_head.next; sed_cmd; sed_cmd = sed_cmd->next)
- {
+ for (sed_cmd = bbg.sed_cmd_head.next; sed_cmd; sed_cmd = sed_cmd->next) {
int old_matched, matched;
old_matched = sed_cmd->in_match;
@@ -769,21 +787,16 @@ restart:
/* Determine if this command matches this line: */
/* Are we continuing a previous multi-line match? */
-
sed_cmd->in_match = sed_cmd->in_match
-
- /* Or is no range necessary? */
+ /* Or is no range necessary? */
|| (!sed_cmd->beg_line && !sed_cmd->end_line
&& !sed_cmd->beg_match && !sed_cmd->end_match)
-
- /* Or did we match the start of a numerical range? */
+ /* Or did we match the start of a numerical range? */
|| (sed_cmd->beg_line > 0 && (sed_cmd->beg_line == linenum))
-
- /* Or does this line match our begin address regex? */
+ /* Or does this line match our begin address regex? */
|| (sed_cmd->beg_match &&
!regexec(sed_cmd->beg_match, pattern_space, 0, NULL, 0))
-
- /* Or did we match last line of input? */
+ /* Or did we match last line of input? */
|| (sed_cmd->beg_line == -1 && next_line == NULL);
/* Snapshot the value */
@@ -792,7 +805,7 @@ restart:
/* Is this line the end of the current match? */
- if(matched) {
+ if (matched) {
sed_cmd->in_match = !(
/* has the ending line come, or is this a single address command? */
(sed_cmd->end_line ?
@@ -807,9 +820,10 @@ restart:
/* Skip blocks of commands we didn't match. */
if (sed_cmd->cmd == '{') {
- if(sed_cmd->invert ? matched : !matched)
- while(sed_cmd && sed_cmd->cmd!='}') sed_cmd=sed_cmd->next;
- if(!sed_cmd) bb_error_msg_and_die("Unterminated {");
+ if (sed_cmd->invert ? matched : !matched)
+ while (sed_cmd && sed_cmd->cmd != '}')
+ sed_cmd = sed_cmd->next;
+ if (!sed_cmd) bb_error_msg_and_die("unterminated {");
continue;
}
@@ -823,230 +837,234 @@ restart:
/* actual sedding */
switch (sed_cmd->cmd) {
- /* Print line number */
- case '=':
- fprintf(bbg.nonstdout,"%d\n", linenum);
- break;
-
- /* Write the current pattern space up to the first newline */
- case 'P':
- {
- char *tmp = strchr(pattern_space, '\n');
+ /* Print line number */
+ case '=':
+ fprintf(bbg.nonstdout, "%d\n", linenum);
+ break;
- if (tmp) {
- *tmp = '\0';
- sed_puts(pattern_space,1);
- *tmp = '\n';
- break;
- }
- /* Fall Through */
- }
+ /* Write the current pattern space up to the first newline */
+ case 'P':
+ {
+ char *tmp = strchr(pattern_space, '\n');
- /* Write the current pattern space to output */
- case 'p':
- sed_puts(pattern_space,no_newline);
+ if (tmp) {
+ *tmp = '\0';
+ sed_puts(pattern_space,1);
+ *tmp = '\n';
break;
- /* Delete up through first newline */
- case 'D':
- {
- char *tmp = strchr(pattern_space,'\n');
-
- if(tmp) {
- tmp=xstrdup(tmp+1);
- free(pattern_space);
- pattern_space=tmp;
- goto restart;
- }
}
- /* discard this line. */
- case 'd':
- goto discard_line;
+ /* Fall Through */
+ }
- /* Substitute with regex */
- case 's':
- if(do_subst_command(sed_cmd, &pattern_space)) {
- substituted|=1;
+ /* Write the current pattern space to output */
+ case 'p':
+ sed_puts(pattern_space,no_newline);
+ break;
+ /* Delete up through first newline */
+ case 'D':
+ {
+ char *tmp = strchr(pattern_space,'\n');
+
+ if (tmp) {
+ tmp = xstrdup(tmp+1);
+ free(pattern_space);
+ pattern_space = tmp;
+ goto restart;
+ }
+ }
+ /* discard this line. */
+ case 'd':
+ goto discard_line;
- /* handle p option */
- if(sed_cmd->sub_p)
- sed_puts(pattern_space,no_newline);
- /* handle w option */
- if(sed_cmd->file)
- sed_cmd->no_newline=puts_maybe_newline(pattern_space, sed_cmd->file, sed_cmd->no_newline, no_newline);
+ /* Substitute with regex */
+ case 's':
+ if (do_subst_command(sed_cmd, &pattern_space)) {
+ substituted |= 1;
- }
- break;
+ /* handle p option */
+ if (sed_cmd->sub_p)
+ sed_puts(pattern_space,no_newline);
+ /* handle w option */
+ if (sed_cmd->file)
+ sed_cmd->no_newline = puts_maybe_newline(pattern_space, sed_cmd->file, sed_cmd->no_newline, no_newline);
- /* Append line to linked list to be printed later */
- case 'a':
- {
- append(sed_cmd->string);
- break;
}
+ break;
- /* Insert text before this line */
- case 'i':
- sed_puts(sed_cmd->string,1);
- break;
+ /* Append line to linked list to be printed later */
+ case 'a':
+ {
+ append(sed_cmd->string);
+ break;
+ }
- /* Cut and paste text (replace) */
- case 'c':
- /* Only triggers on last line of a matching range. */
- if (!sed_cmd->in_match) sed_puts(sed_cmd->string,0);
- goto discard_line;
+ /* Insert text before this line */
+ case 'i':
+ sed_puts(sed_cmd->string,1);
+ break;
+
+ /* Cut and paste text (replace) */
+ case 'c':
+ /* Only triggers on last line of a matching range. */
+ if (!sed_cmd->in_match)
+ sed_puts(sed_cmd->string,0);
+ goto discard_line;
+
+ /* Read file, append contents to output */
+ case 'r':
+ {
+ FILE *rfile;
+
+ rfile = fopen(sed_cmd->string, "r");
+ if (rfile) {
+ char *line;
+
+ while ((line = xmalloc_getline(rfile))
+ != NULL)
+ append(line);
+ xprint_and_close_file(rfile);
+ }
- /* Read file, append contents to output */
- case 'r':
- {
- FILE *rfile;
+ break;
+ }
- rfile = fopen(sed_cmd->string, "r");
- if (rfile) {
- char *line;
-
- while ((line = xmalloc_getline(rfile))
- != NULL)
- append(line);
- xprint_and_close_file(rfile);
- }
+ /* Write pattern space to file. */
+ case 'w':
+ sed_cmd->no_newline = puts_maybe_newline(pattern_space,sed_cmd->file, sed_cmd->no_newline,no_newline);
+ break;
+ /* Read next line from input */
+ case 'n':
+ if (!bbg.be_quiet)
+ sed_puts(pattern_space,no_newline);
+ if (next_line) {
+ free(pattern_space);
+ pattern_space = next_line;
+ no_newline = next_no_newline;
+ next_line = get_next_line(&next_no_newline);
+ linenum++;
break;
}
-
- /* Write pattern space to file. */
- case 'w':
- sed_cmd->no_newline=puts_maybe_newline(pattern_space,sed_cmd->file, sed_cmd->no_newline,no_newline);
- break;
-
- /* Read next line from input */
- case 'n':
- if (!bbg.be_quiet)
- sed_puts(pattern_space,no_newline);
- if (next_line) {
- free(pattern_space);
- pattern_space = next_line;
- no_newline=next_no_newline;
- next_line = get_next_line(&next_no_newline);
- linenum++;
- break;
- }
- /* fall through */
-
- /* Quit. End of script, end of input. */
- case 'q':
- /* Exit the outer while loop */
+ /* fall through */
+
+ /* Quit. End of script, end of input. */
+ case 'q':
+ /* Exit the outer while loop */
+ free(next_line);
+ next_line = NULL;
+ goto discard_commands;
+
+ /* Append the next line to the current line */
+ case 'N':
+ {
+ /* If no next line, jump to end of script and exit. */
+ if (next_line == NULL) {
+ /* Jump to end of script and exit */
free(next_line);
next_line = NULL;
- goto discard_commands;
-
- /* Append the next line to the current line */
- case 'N':
- {
- /* If no next line, jump to end of script and exit. */
- if (next_line == NULL) {
- /* Jump to end of script and exit */
- free(next_line);
- next_line = NULL;
- goto discard_line;
- /* append next_line, read new next_line. */
- } else {
- int len=strlen(pattern_space);
-
- pattern_space = realloc(pattern_space, len + strlen(next_line) + 2);
- pattern_space[len]='\n';
- strcpy(pattern_space+len+1, next_line);
- no_newline=next_no_newline;
- next_line = get_next_line(&next_no_newline);
- linenum++;
- }
- break;
+ goto discard_line;
+ /* append next_line, read new next_line. */
+ } else {
+ int len = strlen(pattern_space);
+
+ pattern_space = realloc(pattern_space, len + strlen(next_line) + 2);
+ pattern_space[len] = '\n';
+ strcpy(pattern_space + len+1, next_line);
+ no_newline = next_no_newline;
+ next_line = get_next_line(&next_no_newline);
+ linenum++;
}
+ break;
+ }
- /* Test/branch if substitution occurred */
- case 't':
- if(!substituted) break;
- substituted=0;
- /* Fall through */
- /* Test/branch if substitution didn't occur */
- case 'T':
- if (substituted) break;
- /* Fall through */
- /* Branch to label */
- case 'b':
- if (!sed_cmd->string) goto discard_commands;
- else sed_cmd = branch_to(sed_cmd->string);
- break;
- /* Transliterate characters */
- case 'y':
- {
- int i;
-
- for (i = 0; pattern_space[i]; i++) {
- int j;
-
- for (j = 0; sed_cmd->string[j]; j += 2) {
- if (pattern_space[i] == sed_cmd->string[j]) {
- pattern_space[i] = sed_cmd->string[j + 1];
- break;
- }
+ /* Test/branch if substitution occurred */
+ case 't':
+ if (!substituted) break;
+ substituted = 0;
+ /* Fall through */
+ /* Test/branch if substitution didn't occur */
+ case 'T':
+ if (substituted) break;
+ /* Fall through */
+ /* Branch to label */
+ case 'b':
+ if (!sed_cmd->string) goto discard_commands;
+ else sed_cmd = branch_to(sed_cmd->string);
+ break;
+ /* Transliterate characters */
+ case 'y':
+ {
+ int i;
+
+ for (i = 0; pattern_space[i]; i++) {
+ int j;
+
+ for (j = 0; sed_cmd->string[j]; j += 2) {
+ if (pattern_space[i] == sed_cmd->string[j]) {
+ pattern_space[i] = sed_cmd->string[j + 1];
+ break;
}
}
-
- break;
}
- case 'g': /* Replace pattern space with hold space */
- free(pattern_space);
- pattern_space = xstrdup(bbg.hold_space ? bbg.hold_space : "");
- break;
- case 'G': /* Append newline and hold space to pattern space */
- {
- int pattern_space_size = 2;
- int hold_space_size = 0;
-
- if (pattern_space)
- pattern_space_size += strlen(pattern_space);
- if (bbg.hold_space)
- hold_space_size = strlen(bbg.hold_space);
- pattern_space = xrealloc(pattern_space,
- pattern_space_size + hold_space_size);
- if (pattern_space_size == 2) pattern_space[0]=0;
- strcat(pattern_space, "\n");
- if (bbg.hold_space)
- strcat(pattern_space, bbg.hold_space);
- no_newline=0;
-
- break;
- }
- case 'h': /* Replace hold space with pattern space */
- free(bbg.hold_space);
- bbg.hold_space = xstrdup(pattern_space);
- break;
- case 'H': /* Append newline and pattern space to hold space */
- {
- int hold_space_size = 2;
- int pattern_space_size = 0;
-
- if (bbg.hold_space)
- hold_space_size += strlen(bbg.hold_space);
- if (pattern_space)
- pattern_space_size = strlen(pattern_space);
- bbg.hold_space = xrealloc(bbg.hold_space,
- hold_space_size + pattern_space_size);
-
- if (hold_space_size == 2) *bbg.hold_space=0;
- strcat(bbg.hold_space, "\n");
- if (pattern_space) strcat(bbg.hold_space, pattern_space);
- break;
- }
- case 'x': /* Exchange hold and pattern space */
- {
- char *tmp = pattern_space;
- pattern_space = bbg.hold_space ? : xzalloc(1);
- no_newline=0;
- bbg.hold_space = tmp;
- break;
- }
+ break;
+ }
+ case 'g': /* Replace pattern space with hold space */
+ free(pattern_space);
+ pattern_space = xstrdup(bbg.hold_space ? bbg.hold_space : "");
+ break;
+ case 'G': /* Append newline and hold space to pattern space */
+ {
+ int pattern_space_size = 2;
+ int hold_space_size = 0;
+
+ if (pattern_space)
+ pattern_space_size += strlen(pattern_space);
+ if (bbg.hold_space)
+ hold_space_size = strlen(bbg.hold_space);
+ pattern_space = xrealloc(pattern_space,
+ pattern_space_size + hold_space_size);
+ if (pattern_space_size == 2)
+ pattern_space[0] = 0;
+ strcat(pattern_space, "\n");
+ if (bbg.hold_space)
+ strcat(pattern_space, bbg.hold_space);
+ no_newline = 0;
+
+ break;
+ }
+ case 'h': /* Replace hold space with pattern space */
+ free(bbg.hold_space);
+ bbg.hold_space = xstrdup(pattern_space);
+ break;
+ case 'H': /* Append newline and pattern space to hold space */
+ {
+ int hold_space_size = 2;
+ int pattern_space_size = 0;
+
+ if (bbg.hold_space)
+ hold_space_size += strlen(bbg.hold_space);
+ if (pattern_space)
+ pattern_space_size = strlen(pattern_space);
+ bbg.hold_space = xrealloc(bbg.hold_space,
+ hold_space_size + pattern_space_size);
+
+ if (hold_space_size == 2)
+ *bbg.hold_space = 0;
+ strcat(bbg.hold_space, "\n");
+ if (pattern_space)
+ strcat(bbg.hold_space, pattern_space);
+
+ break;
+ }
+ case 'x': /* Exchange hold and pattern space */
+ {
+ char *tmp = pattern_space;
+ pattern_space = bbg.hold_space ? : xzalloc(1);
+ no_newline = 0;
+ bbg.hold_space = tmp;
+ break;
+ }
}
}
}
@@ -1071,15 +1089,15 @@ discard_line:
static void add_cmd_block(char *cmdstr)
{
- int go=1;
- char *temp=xstrdup(cmdstr),*temp2=temp;
+ int go = 1;
+ char *temp = xstrdup(cmdstr), *temp2 = temp;
- while(go) {
- int len=strcspn(temp2,"\n");
- if(!temp2[len]) go=0;
- else temp2[len]=0;
+ while (go) {
+ int len = strcspn(temp2,"\n");
+ if (!temp2[len]) go = 0;
+ else temp2[len] = 0;
add_cmd(temp2);
- temp2+=len+1;
+ temp2 += len+1;
}
free(temp);
}
@@ -1119,7 +1137,7 @@ int sed_main(int argc, char **argv)
if (ENABLE_FEATURE_CLEAN_UP) atexit(sed_free_and_close_stuff);
/* Lie to autoconf when it starts asking stupid questions. */
- if(argc==2 && !strcmp(argv[1],"--version")) {
+ if (argc==2 && !strcmp(argv[1],"--version")) {
printf("This is not GNU sed version 4.0\n");
exit(0);
}
@@ -1143,7 +1161,7 @@ int sed_main(int argc, char **argv)
add_files_link(opt_f);
}
/* if we didn't get a pattern from -e or -f, use argv[optind] */
- if(!(opt & 0x18)) {
+ if (!(opt & 0x18)) {
if (argv[optind] == NULL)
bb_show_usage();
else
@@ -1159,7 +1177,8 @@ int sed_main(int argc, char **argv)
* files were specified or '-' was specified, take input from stdin.
* Otherwise, we process all the files specified. */
if (argv[optind] == NULL) {
- if(bbg.in_place) bb_error_msg_and_die(bb_msg_requires_arg, "-i");
+ if (bbg.in_place)
+ bb_error_msg_and_die(bb_msg_requires_arg, "-i");
add_input_file(stdin);
process_files();
} else {
@@ -1170,7 +1189,7 @@ int sed_main(int argc, char **argv)
struct stat statbuf;
int nonstdoutfd;
- if(!strcmp(argv[i], "-") && !bbg.in_place) {
+ if (!strcmp(argv[i], "-") && !bbg.in_place) {
add_input_file(stdin);
process_files();
continue;
@@ -1180,16 +1199,16 @@ int sed_main(int argc, char **argv)
status = EXIT_FAILURE;
continue;
}
- if(!bbg.in_place) {
+ 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)))
+ bbg.outname = xasprintf("%sXXXXXX", argv[i]);
+ nonstdoutfd = mkstemp(bbg.outname);
+ if (-1 == nonstdoutfd)
bb_error_msg_and_die("no temp file");
- bbg.nonstdout=fdopen(nonstdoutfd,"w");
+ bbg.nonstdout = fdopen(nonstdoutfd,"w");
/* Set permissions of output file */
@@ -1199,13 +1218,15 @@ int sed_main(int argc, char **argv)
process_files();
fclose(bbg.nonstdout);
- bbg.nonstdout=stdout;
- unlink(argv[i]);
+ bbg.nonstdout = stdout;
+ /* unlink(argv[i]); */
+ // FIXME: error check / message?
rename(bbg.outname,argv[i]);
free(bbg.outname);
- bbg.outname=0;
+ bbg.outname = 0;
}
- if(bbg.input_file_count>bbg.current_input_file) process_files();
+ if (bbg.input_file_count > bbg.current_input_file)
+ process_files();
}
return status;
generated by cgit v1.1 at 2024-11-06 11:19:01 +0000