puts
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@@ -55,7 +55,6 @@ ResultType(Nothing, charptr) addChildToSolsNode(SolsNode* parent, SolsNode child
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}
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parent->children.at = tmp;
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}
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printf("capacity: %zu, count: %zu\n", parent->children.capacity, parent->children.count);
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parent->children.at[parent->children.count] = child;
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parent->children.count++;
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return Success(Nothing, charptr, {});
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@@ -4,6 +4,24 @@
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#include "../include/estr.h"
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#include "../include/ansii.h"
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SolsTokenPrecedence getPrecedence(SolsToken *token) {
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switch (token->type) {
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case STT_LINE_END: return STP_NEWLINE;
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case STT_KW_PUTS: return STP_PUTS;
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case STT_OP_ADDTO:
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case STT_OP_SUBTO:
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case STT_OP_MULTO:
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case STT_OP_DIVTO:
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case STT_OP_INCREMENT:
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case STT_OP_DECREMENT:
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case STT_OP_SET: return STP_SET;
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// FIXME figure out how to do functions
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case STT_OP_MUL: case STT_OP_DIV: return STP_MUL;
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case STT_OP_ADD: case STT_OP_SUB: return STP_ADD;
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default: return STP_OTHER;
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}
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}
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ResultType(SolsParser, charptr) createSolsParser(SolsTokens* input) {
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ResultType(SolsNode, charptr) node = createSolsNode(SNT_ROOT);
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if (node.error) {
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@@ -25,6 +43,20 @@ ResultType(SolsParser, charptr) createSolsParser(SolsTokens* input) {
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return Success(SolsParser, charptr, parser);
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}
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void addToParserErrors(SolsParser* parser, char* errors) {
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if (parser->errors.count + 1 >= parser->errors.capacity) {
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parser->errors.capacity *= 2;
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char** tmp = realloc(parser->errors.at, sizeof(char*) * parser->errors.capacity);
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if (tmp == NULL) {
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parser->errors.at[parser->errors.count - 1] = "Failed to allocate more memory for addToParserErrors function";
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return;
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}
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parser->errors.at = tmp;
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}
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parser->errors.at[parser->errors.count] = errors;
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parser->errors.count++;
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}
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void createParserError(SolsParser* parser, char* what) {
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ResultType(SolsToken, Nothing) prevToken = Error(SolsToken, Nothing, {});
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@@ -109,6 +141,7 @@ static inline ResultType(Nothing, charptr) parseIdentifier(SolsParser* parser) {
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addChildToSolsNode(parser->currentParent, node.as.success);
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return Success(Nothing, charptr, {});
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}
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static inline ResultType(Nothing, charptr) parseLiteral(SolsParser* parser) {
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ResultType(SolsToken, Nothing) peek = parserPeek(parser, 0);
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if (peek.error) {
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@@ -125,7 +158,45 @@ static inline ResultType(Nothing, charptr) parseLiteral(SolsParser* parser) {
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}
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static inline ResultType(Nothing, charptr) parsePuts(SolsParser* parser) {
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return Error(Nothing, charptr, "Not an error, just curious what errors look like");
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// Collect tokens for node
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ResultType(SolsTokens, charptr) tokens = createSolsTokens();
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if (tokens.error) {
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return Error(Nothing, charptr, tokens.as.error);
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}
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for (;;) {
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ResultType(SolsToken, Nothing) peek = parserPeek(parser, 1);
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if (peek.error) break;
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if (getPrecedence(&peek.as.success) <= STP_PUTS) {
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break;
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}
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parserConsume(parser);
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addTokenToSolsTokens(&tokens.as.success, peek.as.success);
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}
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// Create node
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ResultType(SolsNode, charptr) node = createSolsNode(SNT_PUTS);
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if (node.error) return Error(Nothing, charptr, node.as.error);
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// Parse selected tokens
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ResultType(SolsParser, charptr) putsParser = createSolsParser(&tokens.as.success);
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if (putsParser.error) return Error(Nothing, charptr, putsParser.as.error);
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putsParser.as.success.currentParent = &putsParser.as.success.output;
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ResultType(Nothing, charptr) parsed = parse(&putsParser.as.success);
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// Copy nodes into the sols node
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for (size_t i = 0; i < putsParser.as.success.output.children.count; i++) {
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addChildToSolsNode(&node.as.success, putsParser.as.success.output.children.at[i]);
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}
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// Add any error messages from parsing
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if (parsed.error) {
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addToParserErrors(parser, parsed.as.error);
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}
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addChildToSolsNode(parser->currentParent, node.as.success);
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return Success(Nothing, charptr, {});
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}
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@@ -6,6 +6,24 @@
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#include "../include/error.h"
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#include "../include/nothing.h"
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// Defines precedence for different tokens.
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// Lower number means higher priority.
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// Any operation involving same or higher precedence than
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// the current token's precedence should be processed first
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// (i.e. placed further down the tree)
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typedef enum SolsTokenPrecedence {
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STP_NEWLINE = 0,
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STP_PUTS = 1,
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STP_SET = 2,
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STP_FUNCTION = 3,
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STP_MUL = 4,
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STP_ADD = 5,
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STP_OTHER = 7,
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} SolsTokenPrecedence;
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// Gets the precedence of the provided token.
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SolsTokenPrecedence getPrecedence(SolsToken* token);
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// Holds information about the parser.
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// .input is lexed tokens, produced by a lexer.
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// .current is the token currently being parsed.
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