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Adjusted cc_macro.c formatting with astyle -A1tSxejz2fpUxV

This commit is contained in:
Jeremiah Orians 2021-01-05 22:22:33 -05:00
parent 63bb59404d
commit 0ab7cb78eb
No known key found for this signature in database
GPG Key ID: 6B3A3F198708F894
1 changed files with 291 additions and 266 deletions
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123
cc_macro.c
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@ -18,16 +18,17 @@
#include "gcc_req.h"
void require(int bool, char* error);
int numerate_string(char *a);
void line_error_token(struct token_list *);
int numerate_string(char* a);
void line_error_token(struct token_list* list);
struct conditional_inclusion {
struct conditional_inclusion
{
struct conditional_inclusion* prev;
int include; /* 1 == include, 0 == skip */
int previous_condition_matched; /* 1 == all subsequent conditions treated as FALSE */
};
struct conditional_inclusion *conditional_inclusion_top;
struct conditional_inclusion* conditional_inclusion_top;
/* point where we are currently modifying the global_token list */
struct token_list* macro_token;
@ -36,14 +37,20 @@ void eat_current_token()
{
struct token_list* tmp;
if (NULL != macro_token->prev)
if(NULL != macro_token->prev)
{
macro_token->prev->next = macro_token->next;
}
else
{
global_token = macro_token->next;
}
/* update backlinks */
if (NULL != macro_token->next)
if(NULL != macro_token->next)
{
macro_token->next->prev = macro_token->prev;
}
tmp = macro_token;
macro_token = macro_token->next;
@ -54,16 +61,19 @@ void eat_newline_tokens()
{
macro_token = global_token;
while (TRUE)
while(TRUE)
{
if (NULL == macro_token)
return;
if(NULL == macro_token) return;
if(match("\n", macro_token->s))
{
eat_current_token();
}
else
{
macro_token = macro_token->next;
}
}
}
int macro_expression();
@ -81,63 +91,70 @@ int macro_number()
int macro_primary_expr()
{
if ('-' == macro_token->s[0])
if('-' == macro_token->s[0])
{
eat_current_token();
return -macro_primary_expr();
}
else if ('!' == macro_token->s[0])
else if('!' == macro_token->s[0])
{
eat_current_token();
return !macro_primary_expr();
}
else if ('(' == macro_token->s[0])
else if('(' == macro_token->s[0])
{
eat_current_token();
return macro_expression();
} else if (in_set(macro_token->s[0], "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_"))
}
else if(in_set(macro_token->s[0], "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_"))
{
return macro_variable();
else if (in_set(macro_token->s[0], "0123456789"))
}
else if(in_set(macro_token->s[0], "0123456789"))
{
return macro_number();
}
else
{
return 0; /* FIXME: error handling */
}
}
int macro_additive_expr()
{
int lhs = macro_primary_expr();
if (match("+", macro_token->s))
if(match("+", macro_token->s))
{
eat_current_token();
return lhs + macro_additive_expr();
}
else if (match("-", macro_token->s))
else if(match("-", macro_token->s))
{
eat_current_token();
return lhs - macro_additive_expr();
}
else if (match("*", macro_token->s))
else if(match("*", macro_token->s))
{
eat_current_token();
return lhs * macro_additive_expr();
}
else if (match("/", macro_token->s))
else if(match("/", macro_token->s))
{
eat_current_token();
return lhs / macro_additive_expr();
}
else if (match("%", macro_token->s))
else if(match("%", macro_token->s))
{
eat_current_token();
return lhs % macro_additive_expr();
}
else if (match(">>", macro_token->s))
else if(match(">>", macro_token->s))
{
eat_current_token();
return lhs >> macro_additive_expr();
}
else if (match("<<", macro_token->s))
else if(match("<<", macro_token->s))
{
eat_current_token();
return lhs << macro_additive_expr();
@ -152,32 +169,32 @@ int macro_relational_expr()
{
int lhs = macro_additive_expr();
if (match("<", macro_token->s))
if(match("<", macro_token->s))
{
eat_current_token();
return lhs < macro_relational_expr();
}
else if (match("<=", macro_token->s))
else if(match("<=", macro_token->s))
{
eat_current_token();
return lhs <= macro_relational_expr();
}
else if (match(">=", macro_token->s))
else if(match(">=", macro_token->s))
{
eat_current_token();
return lhs >= macro_relational_expr();
}
else if (match(">", macro_token->s))
else if(match(">", macro_token->s))
{
eat_current_token();
return lhs > macro_relational_expr();
}
else if (match("==", macro_token->s))
else if(match("==", macro_token->s))
{
eat_current_token();
return lhs == macro_relational_expr();
}
else if (match("!=", macro_token->s))
else if(match("!=", macro_token->s))
{
eat_current_token();
return lhs != macro_relational_expr();
@ -193,30 +210,30 @@ int macro_bitwise_expr()
int rhs;
int lhs = macro_relational_expr();
if (match("&", macro_token->s))
if(match("&", macro_token->s))
{
eat_current_token();
return lhs & macro_bitwise_expr();
}
else if (match("&&", macro_token->s))
else if(match("&&", macro_token->s))
{
eat_current_token();
rhs = macro_bitwise_expr();
return lhs && rhs;
}
else if (match("|", macro_token->s))
else if(match("|", macro_token->s))
{
eat_current_token();
rhs = macro_bitwise_expr();
return lhs | rhs;
}
else if (match("||", macro_token->s))
else if(match("||", macro_token->s))
{
eat_current_token();
rhs = macro_bitwise_expr();
return lhs || rhs;
}
else if (match("^", macro_token->s))
else if(match("^", macro_token->s))
{
eat_current_token();
rhs = macro_bitwise_expr();
@ -234,11 +251,11 @@ int macro_expression()
}
void macro_directive()
{
struct conditional_inclusion *t;
int result;
/* FIXME: whitespace is allowed between "#"" and "if" */
if(match("#if", macro_token->s))
{
@ -250,13 +267,15 @@ void macro_directive()
t->prev = conditional_inclusion_top;
conditional_inclusion_top = t;
t->include = TRUE;
if (FALSE == result)
if(FALSE == result)
{
t->include = FALSE;
}
t->previous_condition_matched = t->include;
}
else if (match("#elif", macro_token->s))
else if(match("#elif", macro_token->s))
{
eat_current_token();
result = macro_expression();
@ -264,19 +283,20 @@ void macro_directive()
conditional_inclusion_top->previous_condition_matched =
conditional_inclusion_top->previous_condition_matched || conditional_inclusion_top->include;
}
else if (match("#else", macro_token->s))
else if(match("#else", macro_token->s))
{
eat_current_token();
conditional_inclusion_top->include = !conditional_inclusion_top->previous_condition_matched;
}
else if (match("#endif", macro_token->s))
else if(match("#endif", macro_token->s))
{
if (NULL == conditional_inclusion_top)
if(NULL == conditional_inclusion_top)
{
line_error_token(macro_token);
file_print("unexpected #endif\n", stderr);
exit(EXIT_FAILURE);
}
eat_current_token();
/* pop conditional inclusion */
t = conditional_inclusion_top;
@ -286,13 +306,17 @@ void macro_directive()
else
{
/* unhandled macro directive; let's eat until a newline; om nom nom */
while (TRUE)
while(TRUE)
{
if(NULL == macro_token)
{
if (NULL == macro_token)
return;
}
if ('\n' == macro_token->s[0])
if('\n' == macro_token->s[0])
{
return;
}
eat_current_token();
}
@ -304,15 +328,15 @@ void preprocess()
int start_of_line = TRUE;
macro_token = global_token;
while (NULL != macro_token)
while(NULL != macro_token)
{
if (start_of_line && '#' == macro_token->s[0])
if(start_of_line && '#' == macro_token->s[0])
{
macro_directive();
if (macro_token)
if(macro_token)
{
if ('\n' != macro_token->s[0])
if('\n' != macro_token->s[0])
{
line_error_token(macro_token);
file_print("newline expected at end of macro directive\n", stderr);
@ -323,7 +347,7 @@ void preprocess()
}
}
}
else if ('\n' == macro_token->s[0])
else if('\n' == macro_token->s[0])
{
start_of_line = TRUE;
macro_token = macro_token->next;
@ -331,11 +355,12 @@ void preprocess()
else
{
start_of_line = FALSE;
if (NULL == conditional_inclusion_top)
if(NULL == conditional_inclusion_top)
{
macro_token = macro_token->next;
}
else if (!conditional_inclusion_top->include)
else if(!conditional_inclusion_top->include)
{
/* rewrite the token stream to exclude the current token */
eat_current_token();