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| author | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2024-09-12 13:33:18 +0200 |
|---|---|---|
| committer | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2024-09-12 16:42:08 +0200 |
| commit | 73d574b71a10d4661ada20275cafde75aff6c1ba (patch) | |
| tree | 10ba478542edd4f428120c3609f8dfbe8fb79137 /src/string-utils.c | |
| parent | fe26d83c69c9da6594ba7e27aacc185faa1be161 (diff) | |
| download | sciteco-73d574b71a10d4661ada20275cafde75aff6c1ba.tar.gz | |
teco_string_get_coord() returns character offsets now (refs #5)
* This is used for error messages (TECO macro stackframes),
so it's important to display columns in characters.
* Program counters are in bytes and therefore everywhere gsize.
This is by glib convention.
Diffstat (limited to 'src/string-utils.c')
| -rw-r--r-- | src/string-utils.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/string-utils.c b/src/string-utils.c index d9b12e0..b284760 100644 --- a/src/string-utils.c +++ b/src/string-utils.c @@ -55,13 +55,20 @@ teco_string_echo(const gchar *str, gsize len) return ret; } -/** @memberof teco_string_t */ +/** + * Get character coordinates for a given byte index. + * + * The given string must be valid UTF-8. + * + * @memberof teco_string_t + */ void -teco_string_get_coord(const gchar *str, guint pos, guint *line, guint *column) +teco_string_get_coord(const gchar *str, gsize off, guint *pos, guint *line, guint *column) { + *pos = 0; *line = *column = 1; - for (guint i = 0; i < pos; i++) { + for (guint i = 0; i < off; i = g_utf8_next_char(str+i) - str) { switch (str[i]) { case '\r': if (str[i+1] == '\n') @@ -75,6 +82,7 @@ teco_string_get_coord(const gchar *str, guint pos, guint *line, guint *column) (*column)++; break; } + (*pos)++; } } |