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use stmt type

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This commit is contained in:
lyon1998 2021-10-20 20:40:45 +08:00
parent 1d5460ee75
commit ec2ac14599
1 changed files with 43 additions and 37 deletions
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80
src/PikaParser.c
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@ -43,6 +43,30 @@ char* strsPopStmts(Args* buffs, char* stmts) {
return strOut;
}
enum StmtType {
REF,
STR,
NUM,
METHOD,
NONE,
};
static enum StmtType matchStmtType(char* right) {
if (strIsContain(right, '(') || strIsContain(right, ')')) {
return METHOD;
}
if (strIsContain(right, '\'') || strIsContain(right, '\"')) {
return STR;
}
if (right[0] >= '0' && right[0] <= '9') {
return NUM;
}
if (!strEqu(right, "")) {
return REF;
}
return NONE;
}
AST* AST_parseStmt(AST* ast, char* stmt) {
Args* buffs = New_strBuff();
char* assignment = strsGetFirstToken(buffs, stmt, '(');
@ -52,48 +76,27 @@ AST* AST_parseStmt(AST* ast, char* stmt) {
char* str = NULL;
char* num = NULL;
char* right = NULL;
uint8_t directExist = 0, isMethod = 0, isRef = 0, isStr = 0, isNum = 0;
/* solve direct */
uint8_t directExist = 0;
if (strIsContain(assignment, '=')) {
directExist = 1;
}
if (directExist) {
right = strsGetLastToken(buffs, assignment, '=');
} else {
right = assignment;
}
if (strIsContain(stmt, '(') || strIsContain(stmt, ')')) {
isMethod = 1;
isStr = 0;
isNum = 0;
isRef = 0;
}
if (!isMethod && (strIsContain(right, '\'') || strIsContain(right, '\"'))) {
isMethod = 0;
isStr = 1;
isNum = 0;
isRef = 0;
}
if (!isMethod && !isStr && (right[0] >= '0' && right[0] <= '9')) {
isMethod = 0;
isStr = 0;
isNum = 1;
isRef = 0;
}
if (!isMethod && !isStr && !isNum && !strEqu(stmt, "")) {
isMethod = 0;
isStr = 0;
isNum = 0;
isRef = 1;
}
if (directExist) {
direct = strsGetFirstToken(buffs, assignment, '=');
obj_setStr(ast, (char*)"direct", direct);
}
char* subStmts = NULL;
if (isMethod) {
method = right;
/* solve right stmt */
if (directExist) {
right = strsGetLastToken(buffs, stmt, '=');
} else {
right = stmt;
}
enum StmtType stmtType = matchStmtType(right);
/* solve method stmt */
if (METHOD == stmtType) {
method = strsGetFirstToken(buffs, right, '(');
obj_setStr(ast, (char*)"method", method);
subStmts = strsCut(buffs, stmt, '(', ')');
char* subStmts = strsCut(buffs, stmt, '(', ')');
while (1) {
char* subStmt = strsPopStmts(buffs, subStmts);
if (NULL == subStmt) {
@ -104,19 +107,22 @@ AST* AST_parseStmt(AST* ast, char* stmt) {
}
goto exit;
}
if (isRef) {
/* solve reference stmt */
if (REF == stmtType) {
ref = right;
obj_setStr(ast, (char*)"ref", ref);
goto exit;
}
if (isStr) {
/* solve str stmt */
if (STR == stmtType) {
str = right;
str = strsDeleteChar(buffs, str, '\'');
str = strsDeleteChar(buffs, str, '\"');
obj_setStr(ast, (char*)"str", str);
goto exit;
}
if (isNum) {
/* solve number stmt */
if (NUM == stmtType) {
num = right;
obj_setStr(ast, (char*)"num", num);
goto exit;