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| author | Krasimir Angelov <kr.angelov@gmail.com> | 2017-08-07 16:39:19 +0200 |
|---|---|---|
| committer | Krasimir Angelov <kr.angelov@gmail.com> | 2017-08-07 16:39:19 +0200 |
| commit | a8eeb497670fb0f2ffab1f9b070808df965415be (patch) | |
| tree | 5f169893da63183df272b0d281b5eaf5857ed955 /src/runtime/c/pgf/graphviz.c | |
| parent | a4c19875ed4a97671d17d6d6f062b465ae1f87a6 (diff) | |
the linearizer API now allows to detect metavariables. This is used for instancein the lookup where the tokens produced from the metavariables are interpreted as distinct from all other tokens.
Diffstat (limited to 'src/runtime/c/pgf/graphviz.c')
| -rw-r--r-- | src/runtime/c/pgf/graphviz.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/runtime/c/pgf/graphviz.c b/src/runtime/c/pgf/graphviz.c index 0a7b6d30a..0936a2d63 100644 --- a/src/runtime/c/pgf/graphviz.c +++ b/src/runtime/c/pgf/graphviz.c @@ -174,13 +174,26 @@ pgf_bracket_lzn_end_phrase(PgfLinFuncs** funcs, PgfCId cat, int fid, int lindex, state->parent = state->parent->parent; } +static void +pgf_bracket_lzn_symbol_meta(PgfLinFuncs** funcs, PgfMetaId meta_id) +{ + PgfBracketLznState* state = gu_container(funcs, PgfBracketLznState, funcs); + + PgfParseNode* node = gu_new(PgfParseNode, state->pool); + node->id = 100000 + gu_buf_length(state->leaves); + node->parent = state->parent; + node->label = "?"; + gu_buf_push(state->leaves, PgfParseNode*, node); +} + static PgfLinFuncs pgf_bracket_lin_funcs = { .symbol_token = pgf_bracket_lzn_symbol_token, .begin_phrase = pgf_bracket_lzn_begin_phrase, .end_phrase = pgf_bracket_lzn_end_phrase, .symbol_ne = NULL, .symbol_bind = NULL, - .symbol_capit = NULL + .symbol_capit = NULL, + .symbol_meta = pgf_bracket_lzn_symbol_meta }; static void |