214 lines
4.6 KiB
C
214 lines
4.6 KiB
C
/*
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* main.c
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* md2teach
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*
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* Created by Jeremy Rand on 2021-04-13.
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* Copyright (c) 2021 Jeremy Rand. All rights reserved.
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*
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <resources.h>
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#include <textedit.h>
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#include "io.h"
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#include "main.h"
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#include "translate.h"
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#include "md4c.h"
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// GS_TODO - How big does the stack need to be? In looking over the code,
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// I don't see massive stack frames due to large globals (other than the
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// context which I made static). But I do see lots of arguments and if
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// the call stack gets deep enough, we could have a problem.
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//
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// Testing looks pretty good though with a trivial input. The stack seems
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// to reach just more than 512 bytes deep when the hook functions are called.
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// I suspect things can get much worse with a complex document but this
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// approach should let me measure the worst case stack with a complex
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// document.
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//
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// Leaving the stack very big for now at 32K.
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#pragma stacksize 32768
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// Defines
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#define NUM_HEADER_SIZES 6
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// This is plain, emphasized, strong or strong+empasized
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#define NUM_TEXT_FORMATS 4
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#define NUM_HEADER_STYLES (NUM_HEADER_SIZES * NUM_TEXT_FORMATS)
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#define NUM_CODE_STYLES 1
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#define NUM_TEXT_STYLES NUM_TEXT_FORMATS
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#define NUM_QUOTE_STYLES NUM_TEXT_FORMATS
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#define TOTAL_STYLES (NUM_HEADER_STYLES + NUM_CODE_STYLES + NUM_TEXT_STYLES + NUM_QUOTE_STYLES)
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// Typedefs
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typedef struct tWindowPos
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{
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int16_t height;
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int16_t width;
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int16_t top;
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int16_t left;
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int32_t version;
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} tWindowPos;
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// I wish I could use the structure definition from textedit.h but TERuler contains optional
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// fields in the definition and Teach isn't expecting them it seems (array of theTabs). So,
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// I need my own struct which omits them.
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typedef struct tRuler
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{
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int16_t leftMargin;
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int16_t leftIndent;
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int16_t rightMargin;
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int16_t just;
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int16_t extraLS;
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int16_t flags;
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int32_t userData;
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int16_t tabType;
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int16_t tabTerminator;
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} tRuler;
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typedef struct tFormatHeader
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{
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int16_t version;
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int32_t rulerSize;
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tRuler ruler;
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int32_t styleListLength;
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TEStyle styleList[TOTAL_STYLES];
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LongWord numberOfStyles;
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} tFormatHeader;
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typedef struct tFormat
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{
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tFormatHeader header;
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StyleItem styleItems[1];
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} tFormat;
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//typedef struct tStyle
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// Globals
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void * lowestStackSeen;
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char * commandName;
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int debugEnabled = 0;
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tWindowPos windowPos = {
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0xad, // height
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0x27c, // width
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0x1a, // top
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0x02, // left
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0x0 // version
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};
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// For the 6 header sizes, we are going with:
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// 1 -> Helvetica 36
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// 2 -> Helvetica 30
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// 3 -> Helvetica 27
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// 4 -> Helvetica 24
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// 5 -> Helvetica 20
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// 6 -> Helvetica 18
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uint8_t headerFontSizes[NUM_HEADER_SIZES] = {
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36,
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30,
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27,
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24,
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20,
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18
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};
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tFormat * formatPtr = NULL;
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// Implementation
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static void printUsage(void)
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{
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fprintf(stderr, "USAGE: %s [ -d ] inputfile outputfile\n", commandName);
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}
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static int parseArgs(int argc, char * argv[])
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{
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static int index;
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static int charOffset;
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static int optionLen;
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commandName = argv[0];
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for (index = 1; index < argc; index++) {
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if (argv[index][0] != '-')
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break;
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optionLen = strlen(argv[index]);
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for (charOffset = 1; charOffset < optionLen; charOffset++) {
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switch (argv[index][charOffset]) {
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case 'd':
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debugEnabled = 1;
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break;
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default:
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printUsage();
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return -1;
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break;
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}
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}
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}
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if (index + 2 != argc) {
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printUsage();
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return -1;
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}
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return index;
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}
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int main(int argc, char * argv[])
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{
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int result;
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MD_SIZE inputFileLen;
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MD_CHAR * inputBuffer;
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int index;
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lowestStackSeen = &result;
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index = parseArgs(argc, argv);
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if (index < 0)
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exit(1);
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inputBuffer = readInputFile(argv[index], &inputFileLen);
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if (inputBuffer == NULL)
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exit(1);
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if (openOutputFile(argv[index + 1]) != 0) {
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releaseInputBuffer(inputBuffer);
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exit(1);
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}
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result = parse(inputBuffer, inputFileLen);
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closeOutputFile();
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releaseInputBuffer(inputBuffer);
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putchar('\n');
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if (debugEnabled) {
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fprintf(stderr, "Parser result: %d\n", result);
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fprintf(stderr, "Most stack used: %lu\n", ((unsigned long)&result) - ((unsigned long)lowestStackSeen));
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}
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if (result != 0)
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fprintf(stderr, "%s: Parser failed (%d)\n", commandName, result);
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return result;
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}
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