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Add string operations

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This commit is contained in:
Maxwell
2025-12-01 12:28:15 +11:00
parent 995c1d984b
commit 6d782d65b7
4 changed files with 65 additions and 6 deletions
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48
src/interpreter.c
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@@ -696,6 +696,54 @@ void interpretGroundInstruction(GroundInstruction inst, GroundScope* scope) {
}
break;
}
/*
* STRING OPERATIONS
* Allows easier manipulation of strings.
* Instructions:
* getstrcharat, getstrsize
*/
case GETSTRCHARAT: {
if (in->args.length < 3) {
runtimeError(TOO_FEW_ARGS, "Expecting 3 args", in, currentInstruction);
}
if (in->args.length > 3) {
runtimeError(TOO_MANY_ARGS, "Expecting 3 args", in, currentInstruction);
}
if (in->args.args[0].type != VALUE && in->args.args[0].value.value.type != STRING) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a String for arg 1", in, currentInstruction);
}
if (in->args.args[1].type != VALUE && in->args.args[1].value.value.type != INT) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting an Int for arg 2", in, currentInstruction);
}
if (in->args.args[2].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 3", in, currentInstruction);
}
char* str = in->args.args[0].value.value.data.stringVal;
int64_t idx = in->args.args[1].value.value.data.intVal;
if (idx < strlen(str)) {
addVariable(scope->variables, in->args.args[2].value.refName, createCharGroundValue(str[idx]));
} else {
runtimeError(STRING_ERROR, "Out of bounds index", in, currentInstruction);
}
break;
}
case GETSTRSIZE: {
if (in->args.length < 2) {
runtimeError(TOO_FEW_ARGS, "Expecting 2 args", in, currentInstruction);
}
if (in->args.length > 2) {
runtimeError(TOO_MANY_ARGS, "Expecting 2 args", in, currentInstruction);
}
if (in->args.args[0].type != VALUE && in->args.args[0].value.value.type != STRING) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a String for arg 1", in, currentInstruction);
}
if (in->args.args[1].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 2", in, currentInstruction);
}
addVariable(scope->variables, in->args.args[1].value.refName, createIntGroundValue(strlen(in->args.args[0].value.value.data.stringVal)));
break;
}
/*
* COMPARISONS

2
src/interpreter.h
View File

@@ -7,7 +7,7 @@
#include "include/uthash.h"
typedef enum GroundRuntimeError {
ARG_TYPE_MISMATCH, TOO_FEW_ARGS, TOO_MANY_ARGS, UNKNOWN_LABEL, UNKNOWN_VARIABLE, LIST_ERROR, FIXME
ARG_TYPE_MISMATCH, TOO_FEW_ARGS, TOO_MANY_ARGS, UNKNOWN_LABEL, UNKNOWN_VARIABLE, LIST_ERROR, STRING_ERROR, FIXME
} GroundRuntimeError;
typedef struct GroundLabel {