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8. Input control
This chapter describes various builtin macros for controlling the input
to m4.
| 8.1 Deleting whitespace in input | ||
| 8.2 Changing the quote characters | ||
| 8.3 Changing the comment delimiters | ||
| 8.4 Changing the lexical structure of words | ||
| 8.5 Saving text until end of input |