install-string-character-strategy

Arguments: stream

Use of this function is deprecated in favor of install-string-input-character-strategy and install-string-output-character-strategy, which specialize strategy on input or output.

In earlier releases, the symbol naming this function was string-install-ef-methods. That symbol is no longer exported. Use this new name instead.

This function is called for its side-effects. Its return value is unspecified. This function installs character handlers into the stream that are appropriate for string-streams, and also sets the external-format state slots to nil. (If more specific methods for character handling have already been installed, they will not be overwritten. This allows device-open :before methods from more-specific string streams to install strategy functions that will stick. For example, if a device-open :before method stores the j-read-char function of its choosing, then subsequent calls to install-string-character-strategy by less-specific device-open before methods will result in the excl::j-read-char slot being left alone, but other slots being initialized to their appropriate default values.)

You must load the :iodefs module to use this function. Do that by evaluating (require :iodefs). (It is not an error to evaluate that form if the module is already loaded.) This function is intended for implementing device-level functionality and should not be used except for that purpose. See Simple-stream Description in streams.htm for a description of the device-level.

See streams.htm for information on the simple-streams implementation in Allegro CL.

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This page was not revised from the 9.0 page.
Created 2015.5.21.