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parse.c
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parse.c
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#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "defines.h"
#include "parse.h"
#include "pass_1.h"
#include "stack.h"
#include "include_file.h"
#include "printf.h"
int parse_string_length(char *end);
int input_number_error_msg = YES, ss, string_size, input_float_mode = OFF, parse_floats = YES, expect_calculations = YES;
int newline_beginning = ON, parsed_double_decimal_numbers = 0, operand_hint, operand_hint_type;
char label[MAX_NAME_LENGTH + 1], xyz[512];
char unevaluated_expression[256];
char expanded_macro_string[MAX_NAME_LENGTH + 1];
double parsed_double;
extern int i, size, d, macro_active;
extern char *buffer, tmp[4096], cp[256];
extern struct active_file_info *active_file_info_first, *active_file_info_last, *active_file_info_tmp;
extern struct definition *tmp_def;
extern struct map_t *defines_map;
extern struct macro_runtime *macro_stack, *macro_runtime_current;
extern int latest_stack;
int is_string_ending_with(char *s, char *e) {
int length_s, length_e, k;
if (s == NULL || e == NULL)
return -1;
length_s = (int)strlen(s);
length_e = (int)strlen(e);
if (length_e > length_s)
return -1;
for (k = 0; k < length_e; k++) {
if (s[length_s - length_e + k] != e[k])
return -1;
}
return 1;
}
int compare_next_token(char *token) {
int ii, t, d, k, length;
char e;
length = (int)strlen(token);
/* skip white space */
ii = i;
for (e = buffer[ii]; e == ' ' || e == ',' || e == 0x0A; e = buffer[++ii])
;
/* MACRO mode? */
if (macro_active != 0 && e == '\\') {
if (buffer[ii + 1] == '@') {
char tmp_buffer[64];
snprintf(tmp_buffer, sizeof(tmp_buffer), "%d", macro_runtime_current->macro->calls - 1);
e = tmp_buffer[0];
for (t = 0; t < length && e != 0; ) {
if (toupper((int)token[t]) != toupper((int)e))
return FAILED;
t++;
e = tmp_buffer[t];
}
}
else if (buffer[ii + 1] == '?') {
/* TODO: do we need to implement this? */
return FAILED;
}
else {
for (d = 0, k = 0; k < 16; k++) {
e = buffer[++ii];
if (e >= '0' && e <= '9')
d = (d * 10) + e - '0';
else
break;
}
if (d > macro_runtime_current->supplied_arguments) {
if (input_number_error_msg == YES) {
snprintf(xyz, sizeof(xyz), "COMPARE_NEXT_SYMBOL: Macro \"%s\" wasn't called with enough arguments.\n", macro_runtime_current->macro->name);
print_error(xyz, ERROR_NONE);
}
return FAILED;
}
ii = macro_runtime_current->argument_data[d - 1]->start;
e = buffer[ii];
for (t = 0; t < length && e != ' ' && e != ',' && e != 0x0A; ) {
if (toupper((int)token[t]) != toupper((int)e))
return FAILED;
t++;
e = buffer[++ii];
}
}
}
/* not in MACRO mode */
else {
for (t = 0; t < length && e != ' ' && e != ',' && e != 0x0A; ) {
if (toupper((int)token[t]) != toupper((int)e))
return FAILED;
t++;
e = buffer[++ii];
}
}
if (t == length)
return SUCCEEDED;
return FAILED;
}
int input_next_string(void) {
char e;
int k;
/* skip white space */
for (e = buffer[i++]; e == ' ' || e == ','; e = buffer[i++])
;
if (e == 0x0A)
return INPUT_NUMBER_EOL;
/* last choice is a label */
tmp[0] = e;
for (k = 1; k < MAX_NAME_LENGTH; k++) {
e = buffer[i++];
if (e == 0x0A || e == ',') {
i--;
break;
}
else if (e == ' ')
break;
tmp[k] = e;
}
if (k == MAX_NAME_LENGTH) {
if (input_number_error_msg == YES) {
snprintf(xyz, sizeof(xyz), "The string is too long (max %d characters allowed).\n", MAX_NAME_LENGTH);
print_error(xyz, ERROR_NUM);
}
return FAILED;
}
tmp[k] = 0;
/* expand e.g., \1 and \@ */
if (macro_active != 0) {
if (expand_macro_arguments(tmp) == FAILED)
return FAILED;
}
return SUCCEEDED;
}
int input_number(void) {
char label_tmp[MAX_NAME_LENGTH + 1];
unsigned char e, ee;
int k, p, q, spaces = 0;
double decimal_mul;
operand_hint = HINT_NONE;
operand_hint_type = HINT_TYPE_NONE;
/* skip white space */
for (e = buffer[i++]; e == ' ' || e == ','; e = buffer[i++])
;
if (e == 0x0A)
return INPUT_NUMBER_EOL;
if (expect_calculations == YES) {
/* check the type of the expression */
p = i;
ee = e;
while (ee != 0x0A) {
/* string / symbol -> no calculating */
if (ee == '"' || ee == ',' || (ee == '=' && buffer[p] == '=') || (ee == '!' && buffer[p] == '='))
break;
/* HACK: special case, skip "_\@-1" and alike as we'll parse them later as strings */
if (((ee >= 'a' && ee <= 'z') || (ee >= 'A' && ee <= 'Z') || (ee >= '0' && ee <= '9') || (ee == '_' || ee == '.')) &&
buffer[p] == '\\' && buffer[p+1] == '@' && (buffer[p+2] == '-' || buffer[p+2] == '+') && (buffer[p+3] >= '0' && buffer[p+3] <= '9')) {
p += 4;
}
else if (ee == ' ')
spaces++;
else if (ee == '-' || ee == '+' || ee == '*' || ee == '/' || ee == '&' || ee == '|' || ee == '^' ||
ee == '<' || ee == '>' || ee == '#' || ee == '~' || ee == ':') {
if (ee == ':' && spaces > 0)
break;
/* launch stack calculator */
p = stack_calculate(&buffer[i - 1], &d);
if (p == STACK_CALCULATE_DELAY)
break;
else if (p == STACK_RETURN_LABEL)
return INPUT_NUMBER_ADDRESS_LABEL;
else
return p;
}
ee = buffer[p];
p++;
}
}
/* MACRO */
if (macro_active != 0 && e == '\\') {
struct macro_argument *ma;
int exit_here = YES;
int start_i = i;
unsigned char start_e = e;
if (buffer[i] == '@') {
i++;
d = macro_runtime_current->macro->calls - 1;
if (buffer[i] != ' ' && buffer[i] != 0xA && buffer[i] != ',')
exit_here = NO;
else
return SUCCEEDED;
}
else if (buffer[i] >= '0' && buffer[i] <= '9') {
for (d = 0, k = 0; k < 4; k++) {
e = buffer[i++];
if (e >= '0' && e <= '9')
d = (d * 10) + (e - '0');
else {
i--;
break;
}
}
if (buffer[i] != ' ' && buffer[i] != 0xA && buffer[i] != ',' && buffer[i] != '.')
exit_here = NO;
}
else
exit_here = NO;
if (exit_here == YES) {
if (d > macro_runtime_current->supplied_arguments) {
snprintf(xyz, sizeof(xyz), "Referencing argument number %d inside macro \"%s\". The macro has only %d arguments.\n", d, macro_runtime_current->macro->name, macro_runtime_current->supplied_arguments);
print_error(xyz, ERROR_NUM);
return FAILED;
}
if (d == 0) {
snprintf(xyz, sizeof(xyz), "Referencing argument number %d inside macro \"%s\". Macro arguments are counted from 1.\n", d, macro_runtime_current->macro->name);
print_error(xyz, ERROR_NUM);
return FAILED;
}
/* return the macro argument */
ma = macro_runtime_current->argument_data[d - 1];
k = ma->type;
if (k == INPUT_NUMBER_ADDRESS_LABEL)
strcpy(label, ma->string);
else if (k == INPUT_NUMBER_STRING) {
strcpy(label, ma->string);
string_size = (int)strlen(ma->string);
}
else if (k == INPUT_NUMBER_STACK)
latest_stack = (int)ma->value;
else if (k == SUCCEEDED) {
d = (int)ma->value;
parsed_double = ma->value;
}
else {
print_error("Macro argument list has been corrupted! Please send a bug report!\n", ERROR_ERR);
return FAILED;
}
/* does the MACRO argument number end with a .b/.w/.l? */
if (e == '.') {
e = buffer[i+1];
if (e == 'b' || e == 'B') {
operand_hint = HINT_8BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
else if (e == 'w' || e == 'W') {
operand_hint = HINT_16BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
else if (e == 'l' || e == 'L') {
operand_hint = HINT_24BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
}
return k;
}
else {
i = start_i;
e = start_e;
}
}
/* is it a hexadecimal value? */
d = 0;
if (e >= '0' && e <= '9') {
for (k = 0; 1; k++) {
if (buffer[i+k] >= '0' && buffer[i+k] <= '9')
continue;
if (buffer[i+k] >= 'a' && buffer[i+k] <= 'f')
continue;
if (buffer[i+k] >= 'A' && buffer[i+k] <= 'F')
continue;
if (buffer[i+k] == 'h' || buffer[i+k] == 'H') {
d = 1;
break;
}
break;
}
}
if (e == '$' || d == 1) {
if (d == 1)
i--;
for (d = 0, k = 0; k < 8; k++, i++) {
e = buffer[i];
if (e >= '0' && e <= '9')
d = (d << 4) + e - '0';
else if (e >= 'A' && e <= 'F')
d = (d << 4) + e - 'A' + 10;
else if (e >= 'a' && e <= 'f')
d = (d << 4) + e - 'a' + 10;
else if (e == 'h' || e == 'H') {
i++;
e = buffer[i];
break;
}
else
break;
}
if (e == '.') {
e = buffer[i+1];
if (e == 'b' || e == 'B') {
operand_hint = HINT_8BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
else if (e == 'w' || e == 'W') {
operand_hint = HINT_16BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
else if (e == 'l' || e == 'L') {
operand_hint = HINT_24BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
}
if (operand_hint == HINT_NONE) {
if (d > 0xFFFF && d <= 0xFFFFFF)
operand_hint = HINT_24BIT;
else if (d > 0xFF)
operand_hint = HINT_16BIT;
else
operand_hint = HINT_8BIT;
operand_hint_type = HINT_TYPE_DEDUCED;
#if defined(MC6809)
/* 5-bit values need this */
if (d >= -16 && d <= 15) {
operand_hint = HINT_NONE;
operand_hint_type = HINT_TYPE_NONE;
}
#endif
}
parsed_double = (double)d;
return SUCCEEDED;
}
if (e >= '0' && e <= '9') {
int max_digits = 10;
/* we are parsing decimals when q == 1 */
q = 0;
parsed_double = e-'0';
parsed_double_decimal_numbers = 0;
decimal_mul = 0.1;
for (k = 0; k < max_digits; k++, i++) {
e = buffer[i];
if (e >= '0' && e <= '9') {
if (k == max_digits - 1) {
if (q == 0)
print_error("Too many digits in the integer value. Max 10 is supported.\n", ERROR_NUM);
else {
snprintf(xyz, sizeof(xyz), "Too many digits in the floating point value. Max %d is supported.\n", MAX_FLOAT_DIGITS);
print_error(xyz, ERROR_NUM);
}
return FAILED;
}
if (q == 0) {
/* still parsing an integer */
parsed_double = parsed_double*10 + e-'0';
}
else {
parsed_double = parsed_double + decimal_mul*(e-'0');
decimal_mul /= 10.0;
parsed_double_decimal_numbers = parsed_double_decimal_numbers*10 + (e-'0');
}
}
else if (e == '.') {
if (q == 1) {
print_error("Syntax error.\n", ERROR_NUM);
return FAILED;
}
e = buffer[i+1];
if (e >= '0' && e <= '9') {
/* float mode, read decimals */
if (parse_floats == NO)
break;
q = 1;
max_digits = MAX_FLOAT_DIGITS+1;
}
else if (e == 'b' || e == 'B') {
operand_hint = HINT_8BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
break;
}
else if (e == 'w' || e == 'W') {
operand_hint = HINT_16BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
break;
}
else if (e == 'l' || e == 'L') {
operand_hint = HINT_24BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
break;
}
}
else if ((e >= 'a' && e <= 'z') || (e >= 'A' && e <= 'Z')) {
/* a number directly followed by a letter when parsing a integer/float -> syntax error */
print_error("Syntax error.\n", ERROR_NUM);
return FAILED;
}
else
break;
}
/* drop the decimals */
d = (int)parsed_double;
if (operand_hint == HINT_NONE) {
if (d > 0xFFFF && d <= 0xFFFFFF)
operand_hint = HINT_24BIT;
else if (d > 0xFF)
operand_hint = HINT_16BIT;
else
operand_hint = HINT_8BIT;
operand_hint_type = HINT_TYPE_DEDUCED;
#if defined(MC6809)
/* 5-bit values need this */
if (d >= -16 && d <= 15) {
operand_hint = HINT_NONE;
operand_hint_type = HINT_TYPE_NONE;
}
#endif
}
if (q == 1 && input_float_mode == ON)
return INPUT_NUMBER_FLOAT;
return SUCCEEDED;
}
if (e == '%') {
for (d = 0, k = 0; k < 32; k++, i++) {
e = buffer[i];
if (e == '0' || e == '1')
d = (d << 1) + e - '0';
else
break;
}
if (e == '.') {
e = buffer[i+1];
if (e == 'b' || e == 'B') {
operand_hint = HINT_8BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
else if (e == 'w' || e == 'W') {
operand_hint = HINT_16BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
else if (e == 'l' || e == 'L') {
operand_hint = HINT_24BIT;
operand_hint_type = HINT_TYPE_GIVEN;
i += 2;
}
}
parsed_double = (double)d;
return SUCCEEDED;
}
if (e == '\'') {
d = buffer[i++];
e = buffer[i];
if (e != '\'') {
if (input_number_error_msg == YES) {
snprintf(xyz, sizeof(xyz), "Got '%c' (%d) when expected \"'\".\n", e, e);
print_error(xyz, ERROR_NUM);
}
return FAILED;
}
i++;
parsed_double = (double)d;
return SUCCEEDED;
}
if (e == '"') {
for (k = 0; k < MAX_NAME_LENGTH; ) {
e = buffer[i++];
if (e == '\\' && buffer[i] == '"') {
label[k++] = '"';
i++;
continue;
}
if (e == '"') {
/* check for "string".length */
if (buffer[i+0] == '.' &&
(buffer[i+1] == 'l' || buffer[i+1] == 'L') &&
(buffer[i+2] == 'e' || buffer[i+2] == 'E') &&
(buffer[i+3] == 'n' || buffer[i+3] == 'N') &&
(buffer[i+4] == 'g' || buffer[i+4] == 'G') &&
(buffer[i+5] == 't' || buffer[i+5] == 'T') &&
(buffer[i+6] == 'h' || buffer[i+6] == 'H')) {
/* yes, we've got it! calculate the length and return the integer */
i += 7;
label[k] = 0;
d = (int)get_label_length(label);
parsed_double = (double)d;
return SUCCEEDED;
}
break;
}
if (e == 0 || e == 0x0A) {
print_error("String wasn't terminated properly.\n", ERROR_NUM);
return FAILED;
}
label[k++] = e;
}
label[k] = 0;
/* expand e.g., \1 and \@ */
if (macro_active != 0) {
if (expand_macro_arguments(label) == FAILED)
return FAILED;
k = (int)strlen(label);
}
if (k == MAX_NAME_LENGTH) {
if (input_number_error_msg == YES) {
snprintf(xyz, sizeof(xyz), "The string is too long (max %d characters allowed).\n", MAX_NAME_LENGTH);
print_error(xyz, ERROR_NUM);
}
return FAILED;
}
label[k] = 0;
string_size = k;
return INPUT_NUMBER_STRING;
}
/* the last choice is a label */
label[0] = e;
for (k = 1; k < MAX_NAME_LENGTH; k++) {
e = buffer[i++];
if (e == 0x0A || e == ')' || e == ',' || e == ']') {
i--;
break;
}
else if (e == ' ')
break;
label[k] = e;
}
if (k == MAX_NAME_LENGTH) {
if (input_number_error_msg == YES) {
snprintf(xyz, sizeof(xyz), "The label is too long (max %d characters allowed).\n", MAX_NAME_LENGTH);
print_error(xyz, ERROR_NUM);
}
return FAILED;
}
/* size hint? */
if (label[k-2] == '.') {
if (label[k-1] == 'b' || label[k-1] == 'B') {
operand_hint = HINT_8BIT;
operand_hint_type = HINT_TYPE_GIVEN;
k -= 2;
}
else if (label[k-1] == 'w' || label[k-1] == 'W') {
operand_hint = HINT_16BIT;
operand_hint_type = HINT_TYPE_GIVEN;
k -= 2;
}
else if (label[k-1] == 'l' || label[k-1] == 'L') {
operand_hint = HINT_24BIT;
operand_hint_type = HINT_TYPE_GIVEN;
k -= 2;
}
}
label[k] = 0;
/* expand e.g., \1 and \@ */
if (macro_active != 0) {
if (expand_macro_arguments(label) == FAILED)
return FAILED;
}
/* label_tmp contains the label without possible prefix ':' */
if (strlen(label) > 1 && label[0] == ':')
strcpy(label_tmp, &label[1]);
else
strcpy(label_tmp, label);
/* check for "string".length */
if (strstr(label, ".length") != NULL) {
parse_string_length(strstr(label, ".length"));
return SUCCEEDED;
}
else if (strstr(label, ".LENGTH") != NULL) {
parse_string_length(strstr(label, ".LENGTH"));
return SUCCEEDED;
}
/* check if the label is actually a definition */
if (hashmap_get(defines_map, label, (void*)&tmp_def) != MAP_OK)
hashmap_get(defines_map, label_tmp, (void*)&tmp_def);
if (tmp_def != NULL) {
if (tmp_def->type == DEFINITION_TYPE_VALUE) {
d = (int)tmp_def->value;
if (operand_hint == HINT_NONE) {
if (d > 0xFFFF && d <= 0xFFFFFF)
operand_hint = HINT_24BIT;
else if (d > 0xFF)
operand_hint = HINT_16BIT;
else
operand_hint = HINT_8BIT;
operand_hint_type = HINT_TYPE_DEDUCED;
#if defined(MC6809)
/* 5-bit values need this */
if (d >= -16 && d <= 15) {
operand_hint = HINT_NONE;
operand_hint_type = HINT_TYPE_NONE;
}
#endif
}
parsed_double = (double)d;
return SUCCEEDED;
}
else if (tmp_def->type == DEFINITION_TYPE_STACK) {
/* wrap the referenced, existing stack calculation inside a new stack calculation as stack
calculation contains a write. the 2nd, 3rd etc. reference don't do anything by themselves.
but wrapping creates a new stack calculation that also makes a write */
stack_create_stack_stack((int)tmp_def->value);
return INPUT_NUMBER_STACK;
}
else if (tmp_def->type == DEFINITION_TYPE_ADDRESS_LABEL) {
if (label[0] == ':') {
/* we need to keep the ':' prefix */
if (strlen(tmp_def->string) >= MAX_NAME_LENGTH-1) {
if (input_number_error_msg == YES) {
snprintf(xyz, sizeof(xyz), "The label is too long (max %d characters allowed).\n", MAX_NAME_LENGTH);
print_error(xyz, ERROR_NUM);
}
return FAILED;
}
snprintf(label, sizeof(label), ":%.254s", tmp_def->string);
string_size = tmp_def->size + 1;
}
else {
string_size = tmp_def->size;
memcpy(label, tmp_def->string, string_size);
label[string_size] = 0;
}
return INPUT_NUMBER_ADDRESS_LABEL;
}
else {
string_size = tmp_def->size;
memcpy(label, tmp_def->string, string_size);
label[string_size] = 0;
return INPUT_NUMBER_STRING;
}
}
return INPUT_NUMBER_ADDRESS_LABEL;
}
int parse_string_length(char *end) {
/* remove ".length" from the end of label (end points to inside of label) */
end[0] = 0;
/* check if the label is actually a definition - it should be or else we'll give an error */
hashmap_get(defines_map, label, (void*)&tmp_def);
if (tmp_def != NULL) {
if (tmp_def->type == DEFINITION_TYPE_VALUE) {
if (input_number_error_msg == YES) {
print_error(".length of a value does not make any sense.\n", ERROR_NUM);
}
return FAILED;
}
else if (tmp_def->type == DEFINITION_TYPE_STACK) {
if (input_number_error_msg == YES) {
print_error(".length of a pending computation does not make any sense.\n", ERROR_NUM);
}
return FAILED;
}
else if (tmp_def->type == DEFINITION_TYPE_ADDRESS_LABEL) {
if (input_number_error_msg == YES) {
print_error(".length of an address label does not make any sense.\n", ERROR_NUM);
}
return FAILED;
}
else {
string_size = tmp_def->size;
memcpy(label, tmp_def->string, string_size);
label[string_size] = 0;
d = (int)strlen(label);
parsed_double = (double)d;
return SUCCEEDED;
}
}
return FAILED;
}
void skip_whitespace(void) {
while (1) {
if (i == size)
break;
if (buffer[i] == ' ') {
i++;
newline_beginning = OFF;
continue;
}
if (buffer[i] == 0xA) {
i++;
next_line();
continue;
}
break;
}
}
int get_next_plain_string(void) {
char c;
skip_whitespace();
ss = 0;
while (1) {
if (ss >= MAX_NAME_LENGTH) {
print_error("GET_NEXT_PLAIN_STRING: Too long for a string.\n", ERROR_NONE);
return FAILED;
}
c = buffer[i];
if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_' || c == '.' || c == '\\' || c == '@' || c == ':') {
tmp[ss] = c;
ss++;
i++;
}
else
break;
}
tmp[ss] = 0;
/* expand e.g., \1 and \@ */
if (macro_active != 0) {
if (expand_macro_arguments(tmp) == FAILED)
return FAILED;
ss = (int)strlen(tmp);
}
return SUCCEEDED;
}
int get_next_token(void) {
skip_whitespace();
/* skip leading commas */
while (buffer[i] == ',')
i++;
/* "string"? */
if (buffer[i] == '"') {
for (ss = 0, i++; buffer[i] != 0xA && buffer[i] != '"'; ) {
if (buffer[i] == '\\' && buffer[i + 1] == '"') {
tmp[ss++] = '"';
i += 2;
}
else
tmp[ss++] = buffer[i++];
}
if (buffer[i] == 0xA) {
print_error("GET_NEXT_TOKEN: String wasn't terminated properly.\n", ERROR_NONE);
return FAILED;
}
tmp[ss] = 0;
i++;
/* expand e.g., \1 and \@ */
if (macro_active != 0) {
if (expand_macro_arguments(tmp) == FAILED)
return FAILED;
ss = (int)strlen(tmp);
}
return GET_NEXT_TOKEN_STRING;
}
if (buffer[i] == '.') {
tmp[0] = '.';
i++;
for (ss = 1; buffer[i] != 0x0A && buffer[i] != ' ' && buffer[i] != '-' && ss < MAX_NAME_LENGTH; ) {
tmp[ss] = buffer[i];
cp[ss - 1] = toupper((int)buffer[i]);
i++;
ss++;
}
cp[ss - 1] = 0;
}
else if (buffer[i] == '=' || buffer[i] == '>' || buffer[i] == '<' || buffer[i] == '!') {
for (ss = 0; buffer[i] != 0xA && (buffer[i] == '=' || buffer[i] == '!' || buffer[i] == '<' || buffer[i] == '>')
&& ss < MAX_NAME_LENGTH; tmp[ss++] = buffer[i++]);
}
else {
for (ss = 0; buffer[i] != 0xA && buffer[i] != ',' && buffer[i] != ' ' && ss < MAX_NAME_LENGTH; ) {
tmp[ss] = buffer[i];
ss++;
i++;
}
}
if (ss >= MAX_NAME_LENGTH) {
print_error("GET_NEXT_TOKEN: Too long for a token.\n", ERROR_NONE);
return FAILED;
}
tmp[ss] = 0;
/* expand e.g., \1 and \@ */
if (macro_active != 0) {
if (expand_macro_arguments(tmp) == FAILED)
return FAILED;
ss = (int)strlen(tmp);
}
return SUCCEEDED;
}
int skip_next_token(void) {
for (; buffer[i] == ' ' || buffer[i] == ','; i++)
;
if (buffer[i] == 0x0A)
return FAILED;
if (buffer[i] == '"') {
for (i++; buffer[i] != 0x0A && buffer[i] != '"'; i++)
;
if (buffer[i] == 0x0A) {
print_error("SKIP_NEXT_TOKEN: String wasn't terminated properly.\n", ERROR_NONE);
return FAILED;
}
i++;
return SUCCEEDED;
}
else if (buffer[i] == '=' || buffer[i] == '>' || buffer[i] == '<' || buffer[i] == '!') {
for (; buffer[i] != 0xA && (buffer[i] == '=' || buffer[i] == '!' || buffer[i] == '<' || buffer[i] == '>'); i++)
;
}
else {
for (; buffer[i] != 0x0A && buffer[i] != ' ' && buffer[i] != ','; i++)
;
}
return SUCCEEDED;
}
int _expand_macro_arguments_one_pass(char *in, int *expands, int *move_up) {
char t[MAX_NAME_LENGTH + 1];
int i, j, k, adder;
memset(expanded_macro_string, 0, MAX_NAME_LENGTH + 1);
for (i = 0, k = 0; i < MAX_NAME_LENGTH && k < MAX_NAME_LENGTH; i++) {
if (in[i] == '\\') {
if (in[i + 1] == '"' || in[i + 1] == 'n' || in[i + 1] == '\\') {
expanded_macro_string[k++] = in[i];
i++;
expanded_macro_string[k++] = in[i];
}
else if (in[i + 1] == '@') {
/* we found '@' -> expand! */
(*expands)++;
i++;
adder = 0;
if (in[i + 1] == '-' && in[i + 2] >= '0' && in[i + 2] <= '9') {
/* found "\@-1" and alike */
adder = -(in[i + 2] - '0');
i += 2;
}
else if (in[i + 1] == '+' && in[i + 2] >= '0' && in[i + 2] <= '9') {
/* found "\@+1" and alike */
adder = in[i + 2] - '0';
i += 2;
}
snprintf(t, sizeof(t), "%d", macro_runtime_current->macro->calls - 1 + adder);
for (j = 0; j < MAX_NAME_LENGTH && k < MAX_NAME_LENGTH; j++, k++) {
expanded_macro_string[k] = t[j];
if (t[j] == 0)
break;
}
}