87 lines
3.1 KiB
Markdown
87 lines
3.1 KiB
Markdown
\page standard-parser ARC_Parser
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# Basic Overview
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The ::ARC_Parser type is a generic parsing type. To create the type it is recommeded you use ARC_Parser_CreateFromString(
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# Basic Example
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```c
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const char *languageCString =
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"<variable> -> ALPHA_UPPER_CHAR <variableName> | ALPHA_LOWER_CHAR <variableName> | UNDERSCORE <variableName>\n"
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"<variableName> -> <variableChar> <variableName> | LAMBDA\n"
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"<variableChar> -> ALPHA_UPPER_CHAR | ALPHA_LOWER_CHAR | UNDERSCORE | NUMBER\n";
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#define ARC_DOC_UNDERSCORE 1
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#define ARC_DOC_NUMBER 2
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#define ARC_DOC_ALPHA_UPPER_CHAR 3
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#define ARC_DOC_ALPHA_LOWER_CHAR 4
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#define ARC_DOC_VARIABLE 5
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#define ARC_DOC_VARIABLE_NAME 6
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#define ARC_DOC_VARIABLE_CHAR 7
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void ARC_TEST_InitLexerRulesFn(ARC_Lexer *lexer){
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ARC_Lexer_RegisterTokenRule(lexer, ARC_LexerTokenRule_CreateAndReturnMatchCharRule(ARC_TEST_TAG_UNDERSCORE, '_' ));
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ARC_Lexer_RegisterTokenRule(lexer, ARC_LexerTokenRule_CreateAndReturnMatchCharOrBetween(ARC_TEST_TAG_NUMBER , '0', '9'));
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ARC_Lexer_RegisterTokenRule(lexer, ARC_LexerTokenRule_CreateAndReturnMatchCharOrBetween(ARC_TEST_TAG_ALPHA_LOWER_CHAR, 'a', 'z'));
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ARC_Lexer_RegisterTokenRule(lexer, ARC_LexerTokenRule_CreateAndReturnMatchCharOrBetween(ARC_TEST_TAG_ALPHA_UPPER_CHAR, 'A', 'Z'));
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}
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uint32_t ARC_TEST_GetStringIdFn(ARC_String *string){
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if(ARC_String_EqualsCStringWithStrlen(string, "LAMBDA")){
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return ARC_PARSER_TAG_LAMBDA;
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}
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if(ARC_String_EqualsCStringWithStrlen(string, "UNDERSCORE")){
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return ARC_TEST_TAG_UNDERSCORE;
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}
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if(ARC_String_EqualsCStringWithStrlen(string, "NUMBER")){
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return ARC_TEST_TAG_NUMBER;
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}
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if(ARC_String_EqualsCStringWithStrlen(string, "ALPHA_UPPER_CHAR")){
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return ARC_TEST_TAG_ALPHA_UPPER_CHAR;
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}
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if(ARC_String_EqualsCStringWithStrlen(string, "ALPHA_LOWER_CHAR")){
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return ARC_TEST_TAG_ALPHA_LOWER_CHAR;
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}
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if(ARC_String_EqualsCStringWithStrlen(string, "<variable>")){
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return ARC_TEST_TAG_VARIABLE;
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}
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if(ARC_String_EqualsCStringWithStrlen(string, "<variableName>")){
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return ARC_TEST_TAG_VARIABLE_NAME;
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}
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if(ARC_String_EqualsCStringWithStrlen(string, "<variableChar>")){
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return ARC_TEST_TAG_VARIABLE_CHAR;
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}
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return ~(uint32_t)0;
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}
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void ARC_TESTData_CreateFn(void **data, ARC_ParserTagToken *parsedData, void *userData){
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}
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void ARC_TESTData_DestroyFn(void *data, ARC_Bool clear, void *userData){
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}
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int main(){
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ARC_String *languageString;
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ARC_String_CreateWithStrlen(&languageString, (char *)languageCString);
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ARC_Parser *parser;
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ARC_ParserData_CreateFn createCharFn = ARC_TESTData_CreateFn;
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ARC_ParserData_DestroyFn destroyCharFn = ARC_TESTData_DestroyFn;
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ARC_Parser_CreateFromString(&parser, languageString, ARC_TEST_InitLexerRulesFn, ARC_TEST_GetStringIdFn, &createCharFn, &destroyCharFn, NULL);
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ARC_String_Destroy(languageString);
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//this destroys string, so no need for cleanup
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ARC_String *tempString;
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ARC_String_CreateWithStrlen(&tempString, "variable123");
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ARC_Parser_Parse(parser, &tempString);
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// cleanup
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ARC_Parser_Destroy(parser);
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}
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```
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