decsystem-10 TECO TEXT EDITOR AND CORRECTOR PROGRAM PROGRAMMER'S REFERENCE MANUAL

This document is a comprehensive programmer's reference manual for the TECO (Text Editor and Corrector) program, Version 23, designed for use on DECsystem-10 systems.

Key areas covered include:

• Concepts: Fundamental operations regarding data files, the ASCII-based character set, the editing buffer, the buffer pointer, command string syntax, alphanumeric and numeric arguments, Q-registers, and core expansion.
• Commands: Detailed explanations of commands for initialization (R TECO, MAKE, TECO), file selection (ER, EM, EW, EZ, EB), input (Y, A), buffer pointer positioning, text type-out, deletion, insertion, output, loop iteration, and flow control.
• Techniques: Practical examples for common tasks such as creating and editing FORTRAN programs, rearranging files, and splitting/merging files.
• User Errors: Strategies for correcting input mistakes (rubout, control-G, control-U) and interpreting error messages.
• Appendices: A comprehensive list of error messages with their meanings, a full table of ASCII characters, and a summary of TECO commands.

The manual is intended for advanced users and is not designed as a tutorial for beginners.