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-rw-r--r--lexer.c160
1 files changed, 0 insertions, 160 deletions
diff --git a/lexer.c b/lexer.c
deleted file mode 100644
index 6dc348d..0000000
--- a/lexer.c
+++ /dev/null
@@ -1,160 +0,0 @@
-#ifndef LEXER_C
-#define LEXER_C
-#include <lexer.h>
-
-#define IS_ID_CHAR(x) ( (x <= 'z' && x>='a') || ( x <= 'Z' && x >= 'A' ) || x=='_')
-#define IS_DIGIT(x) ( x <= '9' && x >= '0' )
-#define IS_ID_THING(x) ( IS_ID_CHAR(x) || IS_DIGIT(x))
-#define LEX_ERROR(x) {push_lexing_error(x,src,translation_data); return get_token(src->src+src->where_in_src,0,KW_NOP,src->current_row,src->current_column);}
-
-/*
- * placeholder very slow lexer that I will probabbly not replace
- */
-void lex(struct Queue *token_destination,struct Source *src,struct Translation_Data *translation_data)
-{
- skip_white_space(src);
- while(src->where_in_src<src->src_size)
- {
- Queue_Push(token_destination,lex_step(src,translation_data));
- if(has_new_errors(translation_data))
- return;
- else
- skip_white_space(src);
- }
- Queue_Push(token_destination,get_token(NULL,0,KW_EOF,src->current_row,src->current_column));
-}
-
-
-struct token* lex_step(struct Source *src,struct Translation_Data *translation_data)
-{
- if(check_and_move_if_on_word("machine",sizeof("machine")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("machine")+1,sizeof("machine")-1,KW_MACHINE,src->current_row,src->current_column);
- if(check_and_move_if_on_word("from",sizeof("from")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("from")+1,sizeof("from")-1,KW_FROM,src->current_row,src->current_column);
- if(check_and_move_if_on_word("to",sizeof("to")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("to")+1,sizeof("to")-1,KW_TO,src->current_row,src->current_column);
- if(check_and_move_if_on_word("on",sizeof("on")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("on")+1,sizeof("on")-1,KW_ON,src->current_row,src->current_column);
- if(check_and_move_if_on_word("[",sizeof("[")-1,src,0))
- return get_token(src->src+src->where_in_src-sizeof("[")+1,sizeof("[")-1,KW_OPEN_SQUARE,src->current_row,src->current_column);
- if(check_and_move_if_on_word(",",sizeof(",")-1,src,0))
- return get_token(src->src+src->where_in_src-sizeof(",")+1,sizeof(",")-1,KW_COMMA,src->current_row,src->current_column);
- if(check_and_move_if_on_word("]",sizeof("]")-1,src,0))
- return get_token(src->src+src->where_in_src-sizeof("]")+1,sizeof("]")-1,KW_CLOSE_SQUARE,src->current_row,src->current_column);
- if(check_and_move_if_on_word(";",sizeof(";")-1,src,0))
- return get_token(src->src+src->where_in_src-sizeof(";")+1,sizeof(";")-1,KW_SEMI_COLUMN,src->current_row,src->current_column);
- if(check_and_move_if_on_word("|",sizeof("|")-1,src,0))
- return get_token(src->src+src->where_in_src-sizeof("|")+1,sizeof("|")-1,KW_PIPE,src->current_row,src->current_column);
- if(check_and_move_if_on_word("starting",sizeof("starting")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("starting")+1,sizeof("starting")-1,KW_STARTING,src->current_row,src->current_column);
- if(check_and_move_if_on_word("states",sizeof("states")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("states")+1,sizeof("states")-1,KW_STATES,src->current_row,src->current_column);
- if(check_and_move_if_on_word("events",sizeof("events")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("events")+1,sizeof("events")-1,KW_EVENTS,src->current_row,src->current_column);
- if(check_and_move_if_on_word("execute",sizeof("execute")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("execute")+1,sizeof("execute")-1,KW_EXECUTE,src->current_row,src->current_column);
- if(check_and_move_if_on_word("event",sizeof("event")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("event")+1,sizeof("event")-1,KW_EVENT,src->current_row,src->current_column);
- if(check_and_move_if_on_word("transitions",sizeof("transitions")-1,src,1))
- return get_token(src->src+src->where_in_src-sizeof("transitions")+1,sizeof("transitions")-1,KW_TRANSITIONS,src->current_row,src->current_column);
-
-
-
-
-
-
- if(IS_ID_CHAR(src->src[src->where_in_src])) /*check for id*/
- {
- size_t i;
-
- ++src->where_in_src;
- for( i=src->where_in_src ;
- i < src->src_size && IS_ID_THING(src->src[i]);
- ++i);
-
-
- i-=src->where_in_src;
- src->where_in_src+=i;
- return get_token(src->src + src->where_in_src - i - 1, i + 1, KW_ID,src->current_row,src->current_column);
- }else if(src->src[src->where_in_src]=='"') /*check for string literal*/
- {
- size_t i;
- ++src->where_in_src;
- for( i=src->where_in_src ;
- src->src[i]!='"' && i< src->src_size;
- ++i);
-
- if(i==src->src_size)
- {
- LEX_ERROR("Unexpected end of file");
- }else
- {
- i-=src->where_in_src;
- src->where_in_src+=i+1;
- return get_token(src->src + src->where_in_src-i-1, i, KW_STRING,src->current_row,src->current_column);
- }
-
- }else
- {
- LEX_ERROR("Unexpected symbol");
- }
-}
-struct token* get_token(char *data,size_t size,enum Keyword type,size_t row,size_t column)
-{
- struct token *ret;
- ret=malloc(sizeof(struct token));
- ret->data=data;
- ret->size=size;
- ret->type=type;
- ret->row=row;
- ret->column=column;
-
- return ret;
-}
-void delete_token(struct token *token)
-{
- free(token);
-}
-
-/*word_size without the ending '\0' */
-static char check_and_move_if_on_word(char *word,size_t word_size,struct Source *src,char needs_space_after)
-{
- size_t i;
- if(src->where_in_src + word_size > src->src_size)
- return 0;
-
- for(i=0;i<word_size && word[i]==src->src[src->where_in_src+i];++i);
-
- if(i<word_size)
- {
- return 0;
- }
- else if( (needs_space_after && isspace(src->src[src->where_in_src+i])) || !needs_space_after )
- {
- src->where_in_src+=i;
- src->current_column+=i;
- return 1;
- }
- else
- {
- return 0;
- }
-}
-void skip_white_space(struct Source *src)
-{
- while(src->where_in_src<src->src_size && isspace(src->src[src->where_in_src]))
- {
- if(src->src[src->where_in_src]=='\n')
- {
- ++src->current_row;
- src->current_column=0;
- }
- ++src->where_in_src;
- }
-}
-
-void push_token_into_map(struct token *token,struct Map *map,void *thing)
-{
- Map_Push(map,token->data,token->size,thing);
-}
-#endif