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parser: repeat until

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This commit is contained in:
Blendi
2026-04-29 13:38:26 +02:00
parent f3651e85c5
commit a08ff41995
3 changed files with 34 additions and 4 deletions
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2
src/main.c
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@@ -33,7 +33,7 @@ void print_node(noomP_Node* node, noom_uint_t depth) {
int main(int argc, char** argv) {
// uhh uhhh uhhhhh
const char* code = "::lol:: print('hi') goto lol";
const char* code = "repeat print('hi') until false";
noom_uint_t pos = 0;
printf("LEX OUTPUT:\n");

35
src/parser.c
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@@ -17,6 +17,8 @@ const char *noomP_formatNodeType(noomP_NodeType node_type) {
return "for loop";
case NOOMP_NODE_FORLOOPIN:
return "for loop (in)";
case NOOMP_NODE_REPEAT:
return "repeat loop";
case NOOMP_NODE_BLOCK:
return "block";
case NOOMP_NODE_ATTRIBUTE:
@@ -644,7 +646,7 @@ noomP_Node* noomP_parseFunctionParameters(noomP_Parser* parser) {
return params;
}
noomP_Node* noomP_parseBlock(noomP_Parser* parser) { // stops on end, else or elseif.
noomP_Node* noomP_parseBlock(noomP_Parser* parser) { // stops on end, else or elseif OR UNTIL.
// block starter has been eaten already; we just go until ending keyword
noomP_Node* node = noomP_allocNode(parser);
if (node == 0) return 0; // OOM :(
@@ -1234,7 +1236,7 @@ noomP_Node* noomP_parseRawStatement(noomP_Parser* parser) {
noomP_skip(parser, &token);
return forl;
} else if (noom_streql(parser->code + token.offset, token.length, "goto", 4)) {
} else if (noom_streql(parser->code + token.offset, token.length, "goto", 4)) { // this keyword can't exist if not on the right version
noomP_skip(parser, &token);
noomP_Node* thing = noomP_allocNode(parser);
@@ -1256,9 +1258,36 @@ noomP_Node* noomP_parseRawStatement(noomP_Parser* parser) {
noomP_addSubnode(thing, name);
return thing;
} else if (noom_streql(parser->code + token.offset, token.length, "repeat", 6)) {
noomP_skip(parser, &token);
noomP_Node* repeat = noomP_allocNode(parser);
if (repeat == 0) return 0;
repeat->type = NOOMP_NODE_REPEAT;
repeat->source_offset = token.offset;
noomP_Node* block = noomP_parseBlock(parser);
if (block == 0) return 0;
noomP_addSubnode(repeat, block);
noomP_peek(parser, &token);
if (token.type != NOOML_TOKEN_KEYWORD || !noom_streql(parser->code + token.offset, token.length, "until", 5)) {
return 0;
}
noomP_skip(parser, &token);
// condition
noomP_Node* condition = noomP_parseExpression(parser);
if (condition == 0) return 0;
noomP_addSubnode(repeat, condition);
return repeat;
}
} else if (token.type == NOOML_TOKEN_SYMBOL) {
if (noom_streql(parser->code + token.offset, token.length, "::", 2)) {
if (noom_streql(parser->code + token.offset, token.length, "::", 2)) { // symbol doesn't exist on wrong versions
noomP_skip(parser, &token);
noomP_Node* thing = noomP_allocNode(parser);

1
src/parser.h
View File

@@ -11,6 +11,7 @@ typedef enum noomP_NodeType {
NOOMP_NODE_WHILELOOP,
NOOMP_NODE_FORLOOP,
NOOMP_NODE_FORLOOPIN,
NOOMP_NODE_REPEAT,
NOOMP_NODE_BLOCK,
NOOMP_NODE_ATTRIBUTE,