| Programming tools / Source code edition | |
When editing .per form files, avoid using Tab characters in sources, especially in the LAYOUT or SCREEN sections of forms. Different kinds of text or source code editors can expand Tab characters differently, according to the configuration settings. As a result, if two programmers are using different Tab expansion settings, the form layout will display in different ways. If used in a grid area, a Tab character will be interpreted as 8 blanks by fglform.
It is legal to use Tab characters in the rest of the .per file or .4gl sources (for example, to indent the code).