diff options
Diffstat (limited to 'quote.c')
| -rw-r--r-- | quote.c | 95 |
1 files changed, 65 insertions, 30 deletions
@@ -72,7 +72,7 @@ void sq_quote_argv(struct strbuf *dst, const char** argv, size_t maxlen) } } -char *sq_dequote_step(char *arg, char **next) +static char *sq_dequote_step(char *arg, char **next) { char *dst = arg; char *src = arg; @@ -213,7 +213,7 @@ static size_t quote_c_style_counted(const char *name, ssize_t maxlen, int ch; len = next_quote_pos(p, maxlen); - if (len == maxlen || !p[len]) + if (len == maxlen || (maxlen < 0 && !p[len])) break; if (!no_dq && p == name) @@ -223,6 +223,8 @@ static size_t quote_c_style_counted(const char *name, ssize_t maxlen, EMIT('\\'); p += len; ch = (unsigned char)*p++; + if (maxlen >= 0) + maxlen -= len + 1; if (sq_lookup[ch] >= ' ') { EMIT(sq_lookup[ch]); } else { @@ -293,42 +295,75 @@ void write_name_quotedpfx(const char *pfx, size_t pfxlen, fputc(terminator, fp); } -/* quote path as relative to the given prefix */ -char *quote_path_relative(const char *in, int len, - struct strbuf *out, const char *prefix) +static const char *path_relative(const char *in, int len, + struct strbuf *sb, const char *prefix, + int prefix_len); + +void write_name_quoted_relative(const char *name, size_t len, + const char *prefix, size_t prefix_len, + FILE *fp, int terminator) { - int needquote; + struct strbuf sb = STRBUF_INIT; + + name = path_relative(name, len, &sb, prefix, prefix_len); + write_name_quoted(name, fp, terminator); + + strbuf_release(&sb); +} + +/* + * Give path as relative to prefix. + * + * The strbuf may or may not be used, so do not assume it contains the + * returned path. + */ +static const char *path_relative(const char *in, int len, + struct strbuf *sb, const char *prefix, + int prefix_len) +{ + int off, i; if (len < 0) len = strlen(in); + if (prefix && prefix_len < 0) + prefix_len = strlen(prefix); + + off = 0; + i = 0; + while (i < prefix_len && i < len && prefix[i] == in[i]) { + if (prefix[i] == '/') + off = i + 1; + i++; + } + in += off; + len -= off; + + if (i >= prefix_len) + return in; - /* "../" prefix itself does not need quoting, but "in" might. */ - needquote = next_quote_pos(in, len) < len; - strbuf_setlen(out, 0); - strbuf_grow(out, len); - - if (needquote) - strbuf_addch(out, '"'); - if (prefix) { - int off = 0; - while (prefix[off] && off < len && prefix[off] == in[off]) - if (prefix[off] == '/') { - prefix += off + 1; - in += off + 1; - len -= off + 1; - off = 0; - } else - off++; - - for (; *prefix; prefix++) - if (*prefix == '/') - strbuf_addstr(out, "../"); + strbuf_reset(sb); + strbuf_grow(sb, len); + + while (i < prefix_len) { + if (prefix[i] == '/') + strbuf_addstr(sb, "../"); + i++; } + strbuf_add(sb, in, len); + + return sb->buf; +} - quote_c_style_counted (in, len, out, NULL, 1); +/* quote path as relative to the given prefix */ +char *quote_path_relative(const char *in, int len, + struct strbuf *out, const char *prefix) +{ + struct strbuf sb = STRBUF_INIT; + const char *rel = path_relative(in, len, &sb, prefix, -1); + strbuf_reset(out); + quote_c_style_counted(rel, strlen(rel), out, NULL, 0); + strbuf_release(&sb); - if (needquote) - strbuf_addch(out, '"'); if (!out->len) strbuf_addstr(out, "./"); |