X-Git-Url: https://git.tokkee.org/?p=sysdb.git;a=blobdiff_plain;f=src%2Ffrontend%2Fscanner.l;h=0396db53e0d742f17ca12de0fcec788da4c24045;hp=c279a4876d11a66672fb54e209c81213608ed55b;hb=56b97a180a53aecbfe9f7162b8ece3faae973cf9;hpb=9ae83505d8025ab32a8bdf7904ff4df8f9e661bf

diff --git a/src/frontend/scanner.l b/src/frontend/scanner.l
index c279a48..0396db5 100644
--- a/src/frontend/scanner.l
+++ b/src/frontend/scanner.l
@@ -31,6 +31,7 @@
 #	include "config.h"
 #endif /* HAVE_CONFIG_H */
 
+#include "core/data.h"
 #include "frontend/connection.h"
 #include "frontend/parser.h"
 #include "frontend/grammar.h"
@@ -39,6 +40,7 @@
 #include <errno.h>
 
 #include <string.h>
+#include <stdlib.h>
 
 #define YY_EXTRA_TYPE sdb_fe_yyextra_t *
 
@@ -74,6 +76,18 @@ csc_inside	([^*/]+|[^*]\/|\*[^/])
 csc_end		\*\/
 
 identifier	([A-Za-z_][A-Za-z_0-9$]*)
+/* TODO: fully support SQL strings */
+string		('[^']*')
+
+dec			([\+\-]?[0-9]+)
+exp			([\+\-]?[0-9]+[Ee]\+?[0-9]+)
+integer		({dec}|{exp})
+float1		([\+\-]?[0-9]+\.[0-9]*([Ee][\+\-]?[0-9]+)?)
+float2		([\+\-]?[0-9]*\.[0-9]+([Ee][\+\-]?[0-9]+)?)
+float3		([\+\-]?[0-9]+[Ee]\-[0-9]+)
+float4		([\+\-]?[Ii][Nn][Ff]([Ii][Nn][Ii][Tt][Yy])?)
+float5		([Nn][Aa][Nn])
+float		({float1}|{float2}|{float3}|{float4}|{float5})
 
 %%
 
@@ -89,17 +103,51 @@ identifier	([A-Za-z_][A-Za-z_0-9$]*)
 	}
 
 {identifier} {
-		/* XXX */
-		if (! strcasecmp(yytext, "LIST"))
-			return LIST;
+		/* XXX: simplify handling of reserved words */
+		if (! strcasecmp(yytext, "AND"))
+			return AND;
 		else if (! strcasecmp(yytext, "FETCH"))
 			return FETCH;
+		else if (! strcasecmp(yytext, "LIST"))
+			return LIST;
+		else if (! strcasecmp(yytext, "LOOKUP"))
+			return LOOKUP;
+		else if (! strcasecmp(yytext, "NOT"))
+			return NOT;
+		else if (! strcasecmp(yytext, "OR"))
+			return OR;
+		else if (! strcasecmp(yytext, "WHERE"))
+			return WHERE;
 
 		yylval->str = strdup(yytext);
 		return IDENTIFIER;
 	}
+{string} {
+		yytext[yyleng - 1] = '\0';
+		yylval->str = strdup(yytext + 1);
+		return STRING;
+	}
+{integer} {
+		yylval->data.data.integer = (int64_t)strtoll(yytext, NULL, 10);
+		yylval->data.type = SDB_TYPE_INTEGER;
+		return INTEGER;
+	}
+{float} {
+		yylval->data.data.decimal = strtod(yytext, NULL);
+		yylval->data.type = SDB_TYPE_DECIMAL;
+		return FLOAT;
+	}
+
+=	{ return CMP_EQUAL; }
+!=	{ return CMP_NEQUAL; }
+=~	{ return CMP_REGEX; }
+!~	{ return CMP_NREGEX; }
+\<	{ return CMP_LT; }
+\<=	{ return CMP_LE; }
+\>=	{ return CMP_GE; }
+\>	{ return CMP_GT; }
 
-.	{ /* do nothing for now */ }
+.	{ /* XXX: */ return yytext[0]; }
 
 %%