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* Added macro 'luaL_pushfail'Roberto Ierusalimschy2019-08-161-11/+11
| | | | | | | | The macro 'luaL_pushfail' documents all places in the standard libraries that return nil to signal some kind of failure. It is defined as 'lua_pushnil'. The manual also got a notation (@fail) to document those returns. The tests were changed to be agnostic regarding whether 'fail' is 'nil' or 'false'.
* Small optimizations in 'string.gsub'Roberto Ierusalimschy2019-04-111-0/+30
| | | | | | | | | | | Avoid creating extra strings when possible: - avoid creating new resulting string when subject was not modified (instead, return the subject itself); - avoid creating strings representing the captured substrings when handling replacements like '%1' (instead, add the substring directly to the buffer).
* Optional 'init' argument to 'string.gmatch'Roberto Ierusalimschy2019-01-081-0/+29
| | | | | | | | | The function 'string.gmatch' now has an optional 'init' argument, similar to 'string.find' and 'string.match'. Moreover, there was some reorganization in the manipulation of indices in the string library. This commit also includes small janitorial work in the manual and in comments in the interpreter loop.
* Changes in the control of C-stack overflowRoberto Ierusalimschy2018-12-271-12/+0
| | | | | | | | | | * unification of the 'nny' and 'nCcalls' counters; * external C functions ('lua_CFunction') count more "slots" in the C stack (to allow for their possible use of buffers) * added a new test script specific for C-stack overflows. (Most of those tests were already present, but concentrating them in a single script easies the task of checking whether 'LUAI_MAXCCALLS' is adequate in a system.)
* Added directory to test file names in '$Id:'Roberto Ierusalimschy2018-07-251-1/+1
| | | | | | | From the point of view of 'git', all names are relative to the root directory of the project. So, file names in '$Id:' also should be relative to that directory: the proper name for test file 'all.lua' is 'testes/all.lua'.
* Added manual and tests for version 5.4-w2Roberto Ierusalimschy2018-07-091-0/+374