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2c68e66570
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235 Commits

Author SHA1 Message Date
Roberto Ierusalimschy
2c68e66570 Details 
Several small changes from feedback on 5.4 alhpa rc1 (warnings,
typos in the manual, and the like)
 2019-06-03 11:36:42 -03:00
Roberto Ierusalimschy
b293ae0577 Details 
- new error message for "attempt to assign to const variable"
- note in the manual about compatibility options
- comments
- small changes in 'read_line' and 'pushstr'
 2019-05-28 15:46:49 -03:00
Roberto Ierusalimschy
7c5786479c A few more improvements in 'luaO_pushvfstring' 
- 'L' added to the 'BuffFS' structure
- '%c' does not handle control characters (it is not its business.
This now is done by the lexer, who is the one in charge of that
kind of errors.)
- avoid the direct use of 'l_sprintf' in the Lua kernel
 2019-05-03 10:18:44 -03:00
Roberto Ierusalimschy
b36e26f51b Some more small improvements to 'luaO_pushvfstring' 
Details:
- counter 'pushed' moved to the struct 'BuffFS'
- new auxiliar function 'getbuff' to build strings directly on
the buffer.
 2019-04-26 11:24:39 -03:00
Roberto Ierusalimschy
3da34a5fa7 Revamp of 'lua_pushfstring' / 'luaO_pushvfstring' 
The function 'luaO_pushvfstring' now uses an internal buffer to
concatenate small strings, instead of pushing all pieces on the
stack. This avoids the creation of several small Lua strings for each
piece of the result. (For instance, a format like "n: '%d'" used to
create three intermediate strings: "n: '", the numeral, and "'".
Now it creates none.)
 2019-04-24 14:01:20 -03:00
Roberto Ierusalimschy
5ca1075b71 Added field 'srclen' to structure 'lua_Debug' 
This new field gets the length of 'source' in the same structure.
Unlike the other strings in that structure, 'source' can be
relatively large, and Lua already has its length readily available.
 2019-04-04 11:45:26 -03:00
Roberto Ierusalimschy
1e0c73d5b6 Changes in the validation of UTF-8 
All UTF-8 encoding functionality (including the escape
sequence '\u') accepts all values from the original UTF-8
specification (with sequences of up to six bytes).

By default, the decoding functions in the UTF-8 library do not
accept invalid Unicode code points, such as surrogates. A new
parameter 'nonstrict' makes them accept all code points up to
(2^31)-1, as in the original UTF-8 specification.
 2019-03-15 13:14:17 -03:00
Roberto Ierusalimschy
5e76a4fd31 New macros for arithmetic/bitwise operations in 'luaV_execute' 
The repetitive code of the arithmetic and bitwise operators in
the main iterpreter loop was moved to appropriate macros.
(As a detail, the function 'luaV_div' was renamed 'luaV_idiv',
as it does an "integer division" (floor division).
 2018-11-05 16:10:42 -02:00
Roberto Ierusalimschy
5382a22e0e Corrections in the implementation of '%' for floats. 
The multiplication (m*b) used to test whether 'm' is non-zero and
'm' and 'b' have different signs can underflow for very small numbers,
giving a wrong result. The use of explicit comparisons solves this
problem. This commit also adds several new tests for '%' (both for
floats and for integers) to exercise more corner cases, such as
very large and very small values.
 2018-08-28 12:36:58 -03:00
Roberto Ierusalimschy
f99509581e Removed extra information from RCS keyword strings 
Version numbers and dates (mostly wrong) from RCS keyword strings
removed from all source files; only the file name are kept.
 2018-08-23 14:26:12 -03:00
Roberto Ierusalimschy
505fc91222 no more 'luaO_nilobject' to avoid comparison of global variable addresses 
(now uses static variables)
 2018-06-01 14:40:38 -03:00
Roberto Ierusalimschy
deb807837c 'luaO_pushvfstring' does not need to reallocate stack 
(less error cases in the API)
 2018-04-25 13:26:20 -03:00
Roberto Ierusalimschy
34b00c16e2 removed compatibility code with older versions 2018-02-27 15:47:32 -03:00
Roberto Ierusalimschy
e2b15aa21d janitor work on casts 2018-01-28 13:13:26 -02:00
Roberto Ierusalimschy
a9295a2b8e typos in comments 2017-12-30 18:46:18 -02:00
Roberto Ierusalimschy
599f1742c6 detail (typo in comments) 2017-11-23 17:29:04 -02:00
Roberto Ierusalimschy
e4e5aa85a2 detail ('signal' -> 'sign' in comments) 2017-11-16 11:19:06 -02:00
Roberto Ierusalimschy
26679ea35b new function 'luaV_flttointeger' to convert floats to integers (without 
string coercions) + string operands to bitwise operations handled
by string metamethods
 2017-11-08 12:50:23 -02:00
Roberto Ierusalimschy
911f1e3e7f raw operation should not convert strings to numbers 2017-10-10 17:05:40 -03:00
Roberto Ierusalimschy
4dff277255 coercion string->number in arithmetic operations moved to string 
library
 2017-07-07 13:34:32 -03:00
Roberto Ierusalimschy
f96497397a new type 'StackValue' for stack elements 
(we may want to put extra info there in the future)
 2017-06-29 12:06:44 -03:00
Roberto Ierusalimschy
a9dbc2d641 assert removed in 'luaO_arith' 
(nobody calls it with L==NULL)
 2017-05-24 10:47:11 -03:00
Roberto Ierusalimschy
a45945b6d5 new macro 'lua_pointer2str' to encapsulate use of 'l_sprintf' inside 
the kernel
 2017-04-19 13:34:35 -03:00
Roberto Ierusalimschy
2a235312f0 detail (removing spaces at end of lines) 2016-12-22 11:08:50 -02:00
Roberto Ierusalimschy
09c9fa36ea small corrections for C++ compliance 2016-06-27 10:15:08 -03:00
Roberto Ierusalimschy
10b0b09555 do not convert decimal constants with overflow to integers. 
(Therefore, they will be converted as floats)
 2016-05-20 11:07:48 -03:00
Roberto Ierusalimschy
ed110f66c5 'luaO_str2num' (and, therefore, 'lua_stringtonumber', 'number', 
and coercions) accepts both the locale point and a dot as its
radix character
 2016-05-02 11:00:32 -03:00
Roberto Ierusalimschy
2d1d57bc18 comments 2015-12-14 09:53:27 -02:00
Roberto Ierusalimschy
8c1fb91802 macro 'incr_top' replaced by function 'luaD_inctop'. (It is not used 
in critical time pathes, can save a few bytes without the macro)
 2015-11-02 14:09:30 -02:00
Roberto Ierusalimschy
332a06bbd1 'luaO_pushvfstring' now uses 'incr_top' to increment top. 2015-11-02 12:02:35 -02:00
Roberto Ierusalimschy
e89763e964 simpler code for 'luaO_fb2int' 2015-06-26 16:32:07 -03:00
Roberto Ierusalimschy
19eb6ae580 using 'snprintf' in C99 (both for documentation of buffer sizes 
and some complains from tools)
 2015-06-18 11:26:05 -03:00
Roberto Ierusalimschy
69b5f7a410 some details in 'luaO_int2fb' + more consistent use of the locale 
decimal point
 2015-04-11 15:30:08 -03:00
Roberto Ierusalimschy
e723c75c02 details (avoid 'lint' warnings) 2015-03-28 16:14:47 -03:00
Roberto Ierusalimschy
c8d6cb0136 macros 'luai_num*' (for float arithmetic operations) moved to 
llimits.h.
 2015-02-05 15:15:33 -02:00
Roberto Ierusalimschy
fb6796ba06 removed useless initializations 2014-12-26 12:43:45 -02:00
Roberto Ierusalimschy
5fbd40dbe5 'x//y' extended to floats 2014-11-21 10:15:57 -02:00
Roberto Ierusalimschy
81c39a5244 no need to cast '*s' to unsigned char when we know it is a digit + 
no need to call 'luaO_hexavalue' for decimal digits
 2014-11-04 17:16:25 -02:00
Roberto Ierusalimschy
28fdbcf393 added include for 'lprefix.h', for stuff that must be added before 
any other header file
 2014-11-02 17:19:04 -02:00
Roberto Ierusalimschy
59fbbf0a65 small simplifications in code for 'lua_strx2number' 2014-10-28 16:41:38 -02:00
Roberto Ierusalimschy
4870194380 small reorganization of tests around LUA_USE_C99 2014-10-27 17:21:56 -02:00
Roberto Ierusalimschy
bdf566a8a3 `name' in comments changed to 'name' 2014-10-25 09:50:46 -02:00
Roberto Ierusalimschy
ff9ca88aa6 added some casts to avoid warnings in some compilers 2014-10-24 09:42:29 -02:00
Roberto Ierusalimschy
f97c64d7bf macros 'LUA_QL'/'LUA_QL' deprecated 2014-10-17 13:28:21 -03:00
Roberto Ierusalimschy
56d4537879 '$c' in 'lua_pushfstring' prints non-printable characters with 
their codes
 2014-10-10 19:23:04 -03:00
Roberto Ierusalimschy
c5cae9362c added two casts to avoid warnings in VS 2014-10-04 19:57:10 -03:00
Roberto Ierusalimschy
34b6664dcb better to use 'long' to represent UTF-8 code points 2014-10-01 08:52:33 -03:00
Roberto Ierusalimschy
f5c690b684 details in comments 2014-08-01 14:24:02 -03:00
Roberto Ierusalimschy
34ac039fb8 new macro 'cvt2str' to better control whether numbers are convertible 
to strings
 2014-07-30 11:00:14 -03:00
Roberto Ierusalimschy
b9dcf9974d detail (typos in comments) 2014-06-30 16:48:08 -03:00