diff options
Diffstat (limited to 'builtin-stripspace.c')
-rw-r--r-- | builtin-stripspace.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/builtin-stripspace.c b/builtin-stripspace.c deleted file mode 100644 index 1fd2205d53..0000000000 --- a/builtin-stripspace.c +++ /dev/null @@ -1,88 +0,0 @@ -#include "builtin.h" -#include "cache.h" - -/* - * Returns the length of a line, without trailing spaces. - * - * If the line ends with newline, it will be removed too. - */ -static size_t cleanup(char *line, size_t len) -{ - while (len) { - unsigned char c = line[len - 1]; - if (!isspace(c)) - break; - len--; - } - - return len; -} - -/* - * Remove empty lines from the beginning and end - * and also trailing spaces from every line. - * - * Note that the buffer will not be NUL-terminated. - * - * Turn multiple consecutive empty lines between paragraphs - * into just one empty line. - * - * If the input has only empty lines and spaces, - * no output will be produced. - * - * If last line does not have a newline at the end, one is added. - * - * Enable skip_comments to skip every line starting with "#". - */ -void stripspace(struct strbuf *sb, int skip_comments) -{ - int empties = 0; - size_t i, j, len, newlen; - char *eol; - - /* We may have to add a newline. */ - strbuf_grow(sb, 1); - - for (i = j = 0; i < sb->len; i += len, j += newlen) { - eol = memchr(sb->buf + i, '\n', sb->len - i); - len = eol ? eol - (sb->buf + i) + 1 : sb->len - i; - - if (skip_comments && len && sb->buf[i] == '#') { - newlen = 0; - continue; - } - newlen = cleanup(sb->buf + i, len); - - /* Not just an empty line? */ - if (newlen) { - if (empties > 0 && j > 0) - sb->buf[j++] = '\n'; - empties = 0; - memmove(sb->buf + j, sb->buf + i, newlen); - sb->buf[newlen + j++] = '\n'; - } else { - empties++; - } - } - - strbuf_setlen(sb, j); -} - -int cmd_stripspace(int argc, const char **argv, const char *prefix) -{ - struct strbuf buf = STRBUF_INIT; - int strip_comments = 0; - - if (argc > 1 && (!strcmp(argv[1], "-s") || - !strcmp(argv[1], "--strip-comments"))) - strip_comments = 1; - - if (strbuf_read(&buf, 0, 1024) < 0) - die_errno("could not read the input"); - - stripspace(&buf, strip_comments); - - write_or_die(1, buf.buf, buf.len); - strbuf_release(&buf); - return 0; -} |