File: m4.info,  Node: Input Control,  Next: File Inclusion,  Prev: Debugging,  Up: Top

8 Input control
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This chapter describes various builtin macros for controlling the input
to ‘m4’.

* Menu:

* Dnl::                         Deleting whitespace in input
* Changequote::                 Changing the quote characters
* Changecom::                   Changing the comment delimiters
* Changeword::                  Changing the lexical structure of words
* M4wrap::                      Saving text until end of input