From 9424f3a1b4a4ba6b3ce87a6ce8acb1bff3c19c6d Mon Sep 17 00:00:00 2001
From: ReimarPB <reimarpb@gmail.com>
Date: Tue, 25 Apr 2023 21:18:08 +0200
Subject: [PATCH] Initial commit for CHP

---
 Makefile  |  6 ++++
 chp/chp.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 chp/chp.c

diff --git a/Makefile b/Makefile
index 9fab7e5..2cef4bd 100644
--- a/Makefile
+++ b/Makefile
@@ -29,6 +29,12 @@ LOMMEREIMAR_OBJ = $(patsubst %.c, build/lommereimar/%.o, $(LOMMEREIMAR_SRC))
 lommereimar: $(LOMMEREIMAR_OBJ) $(COMMON_OBJ)
 	$(CC) -o bin/$@ $(CFLAGS) $^ -lm
 
+CHP_SRC = chp.c
+CHP_OBJ = $(patsubst %.c, build/chp/%.o, $(LOMMEREIMAR_SRC))
+
+chp: $(CHP_OBJ) $(COMMON_OBJ)
+	$(CC) -o bin/$@ $(CFLAGS) $^ -lm
+
 build/%.o: %.c $(shell find -name *.h)
 	mkdir $(@D) -p
 	$(CC) -c -o $@ $(CFLAGS) $<
diff --git a/chp/chp.c b/chp/chp.c
new file mode 100644
index 0000000..a322d83
--- /dev/null
+++ b/chp/chp.c
@@ -0,0 +1,98 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <linux/limits.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <string.h>
+
+#define BASE_DIR         "/tmp/chp"
+#define INTERMEDIATE_DIR "/tmp/chp/intermediate"
+#define COMPILE_DIR      "/tmp/chp/compiled"
+
+#define BUFFER_SIZE      25565
+
+char *replace_tag(char *str, int pos)
+{
+	// TODO
+
+	char *new = malloc(strlen(str) + 256);
+	memset(new, strlen(str) + 256, sizeof(char));
+	
+	strncat(new, str, pos);
+}
+
+void handle_file(char *filename)
+{
+	int filename_length = strlen(filename);
+
+	if (strncmp(filename + filename_length - 4, ".chp", 4) != 0)
+		return;
+
+	char *intermediate_filename = strdup(filename);
+	intermediate_filename[filename_length - 2] = '\0';
+
+
+	FILE *input = fopen(filename, "r");
+	FILE *output = fopen(intermediate_filename, "w");
+
+	char buffer[BUFFER_SIZE], newbuffer[BUFFER_SIZE];
+	
+	while (fgets(buffer, BUFFER_SIZE, input) != NULL) {
+		char *str = buffer, *pos;
+
+		// TODO
+		/*while ((pos = strstr(str, "<?c")) != NULL)
+			str = replace_tag(str, pos - str);*/
+
+		fputs(newbuffer, output);
+	}
+
+	free(intermediate_filename);
+}
+
+void read_directory(char *dirname)
+{
+	DIR *dir = opendir(dirname);
+	if (!dir) return;
+
+	struct dirent *entry;
+	while ((entry = readdir(dir)) != NULL) {
+		if (!strncmp(entry->d_name, ".", 1) || !strncmp(entry->d_name, "..", 2)) continue;
+
+		int pathlength = strlen(dirname) + strlen(entry->d_name) + 2;
+		char *pathname = malloc(pathlength);
+		snprintf(pathname, pathlength, "%s/%s", dirname, entry->d_name);
+
+		switch (entry->d_type) {
+			case DT_REG:
+				handle_file(pathname);
+				break;
+			case DT_DIR:
+				read_directory(pathname);
+				break;
+		}
+
+		free(pathname);
+	}
+}
+
+int main(void)
+{
+	puts("Compiling..");
+
+	mkdir(BASE_DIR, 0777);
+	mkdir(INTERMEDIATE_DIR, 0777);
+	mkdir(COMPILE_DIR, 0777);
+
+	char current_dir[PATH_MAX];
+	getcwd(current_dir, sizeof(current_dir));
+
+	read_directory(current_dir);
+
+	puts("Ready");
+
+	return EXIT_SUCCESS;
+}
+