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implementation for pre in the C runtime

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kr.angelov
2014-03-05 10:17:42 +00:00
parent d04ffb60ac
commit 4f9afb9343
4 changed files with 328 additions and 228 deletions
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38
src/runtime/c/pgf/graphviz.c
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@@ -126,41 +126,6 @@ pgf_bracket_lzn_symbol_token(PgfLinFuncs** funcs, PgfToken tok)
gu_buf_push(state->leaves, PgfParseNode*, node);
}
static void
pgf_bracket_lzn_expr_literal(PgfLinFuncs** funcs, PgfLiteral lit)
{
PgfBracketLznState* state = gu_container(funcs, PgfBracketLznState, funcs);
GuString label = NULL;
GuVariantInfo i = gu_variant_open(lit);
switch (i.tag) {
case PGF_LITERAL_STR: {
PgfLiteralStr* lstr = i.data;
label = lstr->val;
break;
}
case PGF_LITERAL_INT: {
PgfLiteralInt* lint = i.data;
label = gu_format_string(state->pool, "%d", lint->val);
break;
}
case PGF_LITERAL_FLT: {
PgfLiteralFlt* lflt = i.data;
label = gu_format_string(state->pool, "%f", lflt->val);
break;
}
default:
gu_impossible();
}
PgfParseNode* node = gu_new(PgfParseNode, state->pool);
node->id = 100000 + gu_buf_length(state->leaves);
node->parent = state->parent;
node->label = label;
gu_buf_push(state->leaves, PgfParseNode*, node);
}
static void
pgf_bracket_lzn_begin_phrase(PgfLinFuncs** funcs, PgfCId cat, int fid, int lindex, PgfCId fun)
{
@@ -211,7 +176,6 @@ pgf_bracket_lzn_end_phrase(PgfLinFuncs** funcs, PgfCId cat, int fid, int lindex,
static PgfLinFuncs pgf_bracket_lin_funcs = {
.symbol_token = pgf_bracket_lzn_symbol_token,
.expr_literal = pgf_bracket_lzn_expr_literal,
.begin_phrase = pgf_bracket_lzn_begin_phrase,
.end_phrase = pgf_bracket_lzn_end_phrase,
.symbol_ne = NULL,
@@ -283,7 +247,7 @@ pgf_graphviz_parse_tree(PgfConcr* concr, PgfExpr expr, GuOut* out, GuExn* err)
state.level = -1;
state.internals = gu_new_buf(GuBuf*, tmp_pool);
state.leaves = gu_new_buf(PgfParseNode*, tmp_pool);
pgf_lzr_linearize(concr, ctree, 0, &state.funcs);
pgf_lzr_linearize(concr, ctree, 0, &state.funcs, tmp_pool);
size_t len = gu_buf_length(state.internals);
for (size_t i = 0; i < len; i++) {