diff options
author | John MacFarlane <jgm@berkeley.edu> | 2016-02-06 14:52:12 -0800 |
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committer | John MacFarlane <jgm@berkeley.edu> | 2016-02-06 14:52:12 -0800 |
commit | 455e59fa39fb3cd18a1f01b31eea5ead26fbf7c4 (patch) | |
tree | 51242db330904425eb2e1119bd4a6402d30b6833 /src/blocks.c | |
parent | 22fa64426a24df5b906bf39e718acf1d64e5d8cf (diff) |
Clarify logic in S_advance_offset.
Diffstat (limited to 'src/blocks.c')
-rw-r--r-- | src/blocks.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/src/blocks.c b/src/blocks.c index 20ea579..ff102c9 100644 --- a/src/blocks.c +++ b/src/blocks.c @@ -17,6 +17,10 @@ #define CODE_INDENT 4 #define TAB_STOP 4 +#ifndef MIN +#define MIN(x, y) ((x < y) ? x : y) +#endif + #define peek_at(i, n) (i)->data[n] static inline bool S_is_line_end_char(char c) { @@ -587,11 +591,18 @@ static void S_advance_offset(cmark_parser *parser, cmark_chunk *input, while (count > 0 && (c = peek_at(input, parser->offset))) { if (c == '\t') { chars_to_tab = TAB_STOP - (parser->column % TAB_STOP); - parser->partially_consumed_tab = columns && chars_to_tab > count; - chars_to_advance = parser->partially_consumed_tab ? count : chars_to_tab; - parser->column += chars_to_advance; - parser->offset += parser->partially_consumed_tab ? 0 : 1; - count -= (columns ? chars_to_advance : 1); + if (columns) { + parser->partially_consumed_tab = chars_to_tab > count; + chars_to_advance = MIN(count, chars_to_tab); + parser->column += chars_to_advance; + parser->offset += (parser->partially_consumed_tab ? 0 : 1); + count -= chars_to_advance; + } else { + parser->partially_consumed_tab = false; + parser->column += chars_to_tab; + parser->offset += 1; + count -= 1; + } } else { parser->partially_consumed_tab = false; parser->offset += 1; |