From e79c6f67ff9276fc2f5a4ab79cd4678aaaa4eb17 Mon Sep 17 00:00:00 2001
From: Alessandro Iezzi <aiezzi@alessandroiezzi.it>
Date: Mon, 22 Jul 2024 17:02:03 +0200
Subject: Initial commit

---
 .gitignore   |  5 +++++
 Makefile     | 24 ++++++++++++++++++++++
 properties.l | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 properties.l

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6be102b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+properties
+*.o
+*.core
+a.out
+*-lexer.c
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..87cd305
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,24 @@
+LEX  = lex
+YACC = yacc
+CC   = cc
+
+OBJ = properties-lexer.o
+
+LFLAGS = -ll
+
+
+all: properties
+#	${CC} properties-lexer.c properties-parser.c -o properties -ll -ly
+
+properties-lexer.o: properties.l
+	${LEX} properties.l
+	@mv lex.yy.c properties-lexer.c
+	${CC} -c properties-lexer.c
+
+properties: ${OBJ}
+	${CC} ${OBJ} -o $@ ${LFLAGS}
+
+clean:
+	@rm -f ${OBJ} *.core a.out
+	@rm -f properties-lexer.c lex.*
+	@rm -f properties
diff --git a/properties.l b/properties.l
new file mode 100644
index 0000000..653c358
--- /dev/null
+++ b/properties.l
@@ -0,0 +1,67 @@
+%{
+enum {
+	KEY = 1,
+	DIV,
+	VALUE
+};
+%}
+
+%%
+
+=|:                    return DIV;
+^[ \t]*[a-zA-Z0-9\.]*  return KEY;
+[ \t]*                 ;
+.                      return VALUE;
+
+%%
+
+struct Properties {
+	char *key;
+	char *value;
+	struct Properties *next;
+};
+
+int
+main(void)
+{
+	int token;
+	int next_token = KEY;
+	struct Properties properties;
+	properties.next = NULL;
+
+	char *key;
+	char *value = calloc(2048, sizeof(char));
+	int v = 0;
+
+	do {
+		v = 0;
+		value = calloc(2048, sizeof(char));
+
+		token = yylex();
+
+		if (next_token == VALUE) {
+			if (token == VALUE) {
+				do {
+					*(value + v) = *yytext;
+					v++;
+				} while ((token = yylex()) == VALUE);
+			}
+
+			next_token = KEY;
+			printf("%s --> %s|\n", key, value);
+		}
+
+		if (token == KEY && next_token == KEY) {
+			next_token = DIV;
+			key = strdup(yytext);
+		} else if (token == DIV && next_token == DIV) {
+			next_token = VALUE;
+		}
+	} while (token != 0);
+
+	while (properties.next != NULL) {
+		printf("%s ---> %s\n", properties.key, properties.value);
+	}
+
+	return EXIT_SUCCESS;
+}
-- 
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