readme.doc

C 语言开发环境

                  ---------- MS/PC-DOS Notes ----------

- Prerequisites

These  programs  are  supplied  as  source  code for use with the Small-C
compiler version 2.1.  You will also need a copy of the standard  8086/88
assembler and the standard linker.

- Metacharacters

The  choice  of metacharacters for for beginning-of-line and end-of-line,
the  grave  (`)  and  apostrophe  (')  respectively,  reported   in   the
Small-Tools   User's   Manual   has   been   changed  for  the  MS/PC-DOS
implementation.  When DOS encounters a grave (`) in a  command  line,  it
breaks the line into separate commands; therefore, any command containing
a text pattern with that character will be messed up by DOS.

This  implementation  uses  the quotation mark (") for beginning-of-line.
As the manual points out this is recognized as a metacharacter only if it
appears first in a text pattern.  If it must  be  taken  as  an  ordinary
character in that position, then escape it with a colon (:).

If  you  prefer different metacharacter assignments, the UNIX assignments
for instance, you may change the define  commands  in  the  file  TOOLS.H
before you start compiling.

- ANSI.SYS

The  text  editor  EDT and the printer font selector FNT use the sequence
ESC,[,2,J to clear the screen, so it is necessary to  invoke  the  screen
driver ANSI.SYS  if  they  are going to be used.  This is done by placing
the line "DEVICE=ANSI.SYS" in the file CONFIG.SYS.