Differences
This shows you the differences between two versions of the page.
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input [2019/05/29 21:33] neils |
input [2019/09/20 07:51] (current) neils |
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| No prompt string (e. g. ''?'' in CBM BASIC) is displayed. Line editing features are limited to the ''DELETE'' button, moving the cursor is not allowed. | No prompt string (e. g. ''?'' in CBM BASIC) is displayed. Line editing features are limited to the ''DELETE'' button, moving the cursor is not allowed. | ||
| + | |||
| + | **Warning:** the buffer that the string pointer points to must be wide enough to accept the user input, otherwise buffer overflow will occur! | ||
| Examples: | Examples: | ||
| + | rem -- initialize a buffer first | ||
| + | dim buff![21] | ||
| + | name$ = @buff! | ||
| rem -- input any string, max 20 chars and store it to name$ | rem -- input any string, max 20 chars and store it to name$ | ||
| input name$, 20 | input name$, 20 | ||
| + | | ||
| rem -- input a numeric string, max 6 chars | rem -- input a numeric string, max 6 chars | ||
| + | rem -- assume a buffer has been initialized | ||
| input num$, 6, "0123456789-" | input num$, 6, "0123456789-" | ||
| + | | ||
| rem --input a string, allowing alphanumeric chars only | rem --input a string, allowing alphanumeric chars only | ||
| + | rem -- assume a buffer has been initialized | ||
| input a$, 10, "0123456789abcdefghijklmnopqrstuvwxzy" | input a$, 10, "0123456789abcdefghijklmnopqrstuvwxzy" | ||