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230 lines
4.4 KiB
C
230 lines
4.4 KiB
C
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/*
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* FILE : man.c
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* NATIVE NAME: ReactOS manual browser
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* AUTHOR : Semyon Novikov (tappak)
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* PROJECT : ReactOS Operating System
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* DESCRIPTION: manual file browser (Use Linux man file syntax)
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* DATE : 2004-03-29
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* LICENSE : GPL
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*/
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/* Known issues.
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* 1. Scroll screen
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* 2. Non ENVIRONMENT manpath varrible
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* 3. At the end of man page must be ./" tag!
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*/
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#include <stdio.h>
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#include <string.h>
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#include <windows.h>
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#include <wincon.h>
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#define MAXLINE 256
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#define BOLD 7|9
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#define ITALIC 3|9
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#define NORMAL 7|0
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/*===[functions]===*/
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void SetCl(WORD cl);
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int OpenF(char* name);
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int CloseF(void);
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void Usage(void);
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int AnalyzeArgv(char *);
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int AnalyzeFile();
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/*=================*/
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/*====[Globals]====*/
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FILE* manfile;
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char OpenFlag=0;
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char manpath[MAXLINE]="c:\\man\\";
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/*=================*/
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void
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SetCl(WORD cl)
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{
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SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),cl);
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}
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int
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OpenF(char* name)
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{
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int retval=0;
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char *manpath_local=(char*)malloc(sizeof(char)*MAXLINE);
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strcpy(manpath_local, manpath); //save mandir value
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if((manfile=fopen((strcat(manpath_local,name)),"r"))!=NULL)
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{
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OpenFlag=1;
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AnalyzeFile();
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}
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else
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retval=-1;
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strcpy(manpath_local, manpath);
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return retval;
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}
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int
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CloseF()
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{
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int retval=0;
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if(fclose(manfile))
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OpenFlag=0;
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else retval=-1;
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return retval;
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}
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void
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Usage()
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{
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puts("usage: man [command]");
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puts("see \"man man\" for details");
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}
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int
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AnalyzeArgv(char *argument)
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{
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char element=0;
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char HelpFlag=0;
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char *keys[]={"--help","/h","/?","-h"};
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char *sections[]={".1",".2",".3",".4",".5",".6",".7",".8",".9"};
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char *filename=(char*)malloc(sizeof(char)*MAXLINE);
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strcpy(filename,argument); //save argument value
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for(element=0; element < 5;element++)
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if(!strcmp(keys[element],argument))
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{
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Usage();
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HelpFlag=1;
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}
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element = 0;
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if(!HelpFlag)
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if(OpenF(filename))
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while(OpenF(strcat(filename,sections[element])) && (element<9))
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{
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strcpy(filename,argument);
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element++;
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}
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if(element>8) printf("No manual for %s\n",argument);
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return element;
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}
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int
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AnalyzeFile()
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{
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char *cur_string=(char*)malloc(sizeof(char)*MAXLINE);
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char symbol=0;
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char *THtag=(char*)malloc(sizeof(char)*MAXLINE);
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void sh_outp(void)
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{
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putchar('\n');
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putchar('\n');
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for(symbol=3;putchar(cur_string[symbol]); symbol++);
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}
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void th_outp(void)
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{
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putchar('\n');
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putchar('\n');
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putchar('\t');
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putchar('\t');
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SetCl(ITALIC);
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for(symbol=3;putchar(THtag[symbol]); symbol++);
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putchar('\n');
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SetCl(NORMAL);
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}
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void text_outp(void)
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{
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char TagFlag=0;
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symbol=0;
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if(cur_string[0]=='.')
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while(cur_string[symbol]!=' ')
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symbol++;
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if(symbol) TagFlag=1;
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for(symbol;cur_string[symbol]!='\n'; symbol++)
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putchar(cur_string[symbol]);
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putchar(' ');
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}
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while(fgets(cur_string,MAXLINE,manfile))
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/* TAGs processing */
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if((cur_string[0]=='.')&&(cur_string[1]=='S')&&
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(cur_string[2]=='H')) // .SH tag
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{
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SetCl(BOLD);
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sh_outp();
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SetCl(NORMAL);
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}
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else
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if((cur_string[0]=='.')&&(cur_string[1]=='I')&&
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(cur_string[2]==' ')) // .I tag
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{
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SetCl(ITALIC);
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text_outp();
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SetCl(NORMAL);
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}
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else
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if((cur_string[0]=='.')&&(cur_string[1]=='/')&&
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(cur_string[2]=='\"')); // ./" tag (comment)
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else
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if((cur_string[0]=='.')&&(cur_string[1]=='T')&&
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(cur_string[2]=='H')) // .TH tag
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{
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strcpy(THtag,cur_string);
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}
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else
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if((cur_string[0]=='.')&&(cur_string[1]=='B')&&
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(cur_string[2]==' ')) // .B tag
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{
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SetCl(BOLD);
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text_outp();
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SetCl(NORMAL);
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}
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else
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if((cur_string[0]=='.')&&(cur_string[1]=='N')&&
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(cur_string[2]=='L'))
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{
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putchar('\n');
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putchar(' ');
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}
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else text_outp(); // print plane text
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th_outp();
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/* END of TAGs processing */
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}
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int
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main(int argc, char *argv[])
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{
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switch(argc)
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{
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case 1: Usage(); break;
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case 2: AnalyzeArgv(argv[1]);break;
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default: Usage();break;
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}
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if(OpenFlag)CloseF();
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SetCl(NORMAL);
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}
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