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authorKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
committerKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
commitad547a6b5986815fda458221149728d9d9ab1d87 (patch)
tree16296910eb3eca724371474ea9aea3994dc69614 /Build/source/texk/web2c/mfluadir/mfluac.c
parent947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (diff)
restore Build,TODO from r57911
git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/mfluadir/mfluac.c')
-rw-r--r--Build/source/texk/web2c/mfluadir/mfluac.c1600
1 files changed, 1600 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/mfluadir/mfluac.c b/Build/source/texk/web2c/mfluadir/mfluac.c
new file mode 100644
index 00000000000..82d8a04927f
--- /dev/null
+++ b/Build/source/texk/web2c/mfluadir/mfluac.c
@@ -0,0 +1,1600 @@
+#include <string.h>
+
+#define EXTERN extern
+
+
+#if defined(JIT)
+#include "mfluajitd.h"
+#else
+#include "mfluad.h"
+#endif
+
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+#include <kpathsea/kpathsea.h>
+#if defined(JIT)
+#include <luajit.h>
+#endif
+
+
+#if defined(NO_OTFCC)
+/* */
+#else
+extern int otfcc_build(int argc, char *argv[]);
+extern int otfcc_dump(int argc, char *argv[]);
+#endif
+
+/* See shell_cmd_is_allowed below */
+int shellenabledp = 1;
+int restrictedshell = 0;
+
+/**************************************************************/
+/* */
+/* MFbuiltin private functions */
+/* */
+/**************************************************************/
+static lua_State *Luas[1];
+
+/* static */
+/* void stackdump_g(lua_State* L) */
+/* { */
+/* int i; */
+/* int top = lua_gettop(L); */
+
+/* printf("total in stack %d\n",top); */
+
+/* for (i = 1; i <= top; i++) */
+/* { /\* repeat for each level *\/ */
+/* int t = lua_type(L, i); */
+/* printf("[%d][%d] ",i,i-top-1); */
+/* switch (t) { */
+/* case LUA_TSTRING: /\* strings *\/ */
+/* printf("string: '%s'\n", lua_tostring(L, i)); */
+/* break; */
+/* case LUA_TBOOLEAN: /\* booleans *\/ */
+/* printf("boolean %s\n",lua_toboolean(L, i) ? "true" : "false"); */
+/* break; */
+/* case LUA_TNUMBER: /\* numbers *\/ */
+/* printf("number: %g\n", lua_tonumber(L, i)); */
+/* break; */
+/* default: /\* other values *\/ */
+/* printf("%s\n", lua_typename(L, t)); */
+/* break; */
+/* } */
+/* printf(" "); /\* put a separator *\/ */
+/* } */
+/* printf("\n"); /\* end the listing *\/ */
+/* } */
+
+
+static
+void priv_lua_reporterrors(lua_State *L, int status)
+{
+ if ( status!=0 ) {
+ fprintf(stderr,"\n! %s\n",lua_tostring(L, -1));
+ lua_pop(L, 1); /* remove error message */
+ }
+}
+
+
+/* static */
+/* void priv_lua_writemessage(lua_State *L, char *startmsg, char *bodymsg, char *endmsg, int status) */
+/* { */
+/* (void) L; */
+/* if ( status!=0 ) { */
+/* fprintf(stdout,"%s%s%s\n",startmsg,bodymsg,endmsg); */
+/* } */
+/* } */
+
+
+#define link_field(p) mem[p].hhfield.rh /* {the |link| field of a memory word} */
+static int priv_mfweb_link(lua_State *L)
+{
+ halfword p,q;
+ p = (halfword) lua_tonumber(L,1);
+ q = link_field(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+#define info_field(p) mem[p].hhfield.lhfield /* {the |info| field of a memory word} */
+static int priv_mfweb_info(lua_State *L)
+{
+ halfword p,q;
+ p = (halfword) lua_tonumber(L,1);
+ q = info_field(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+
+#define x_coord(p) mem[p+1].cint /* {the |x| coordinate of this knot} */
+static int priv_mfweb_x_coord(lua_State *L)
+{
+ halfword p;
+ int q;
+ p = (halfword) lua_tonumber(L,1);
+ q = x_coord(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+#define y_coord(p) mem[p+2].cint /* {the |y| coordinate of this knot} */
+static int priv_mfweb_y_coord(lua_State *L)
+{
+ halfword p,q;
+ p = (halfword) lua_tonumber(L,1);
+ q = y_coord(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+
+#define left_type(p) mem[p].hhfield.b0 /* {characterizes the path entering this knot} */
+static int priv_mfweb_left_type(lua_State *L)
+{
+ halfword p,q;
+ p = (halfword) lua_tonumber(L,1);
+ q = left_type(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+#define right_type(p) mem[p].hhfield.b1 /* {characterizes the path leaving this knot} */
+static int priv_mfweb_right_type(lua_State *L)
+{
+ halfword p,q;
+ p = (halfword) lua_tonumber(L,1);
+ q = right_type(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+
+#define left_x(p) mem[p+3].cint /* {the |x| coordinate of previous control point} */
+static int priv_mfweb_left_x(lua_State *L)
+{
+ halfword p;
+ integer q ;
+ p = (halfword) lua_tonumber(L,1);
+ q = left_x(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+
+#define left_y(p) mem[p+4].cint /* {the |y| coordinate of previous control point} */
+static int priv_mfweb_left_y(lua_State *L)
+{
+ halfword p;
+ integer q ;
+ p = (halfword) lua_tonumber(L,1);
+ q = left_y(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+
+#define right_x(p) mem[p+5].cint /* {the |x| coordinate of next control point} */
+static int priv_mfweb_right_x(lua_State *L)
+{
+ halfword p;
+ integer q ;
+ p = (halfword) lua_tonumber(L,1);
+ q = right_x(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+#define right_y(p) mem[p+6].cint /* {the |y| coordinate of next control point} */
+static int priv_mfweb_right_y(lua_State *L)
+{
+ halfword p;
+ integer q;
+ p = (halfword) lua_tonumber(L,1);
+ q = right_y(p);
+ lua_pushnumber(L,q);
+ return 1;
+}
+
+/* @ Conversely, the |n_sin_cos| routine takes an |angle| and produces the sine */
+/* and cosine of that angle. The results of this routine are */
+/* stored in global integer variables |n_sin| and |n_cos|. */
+
+/* @<Glob...@>= */
+/* @!n_sin,@!n_cos:fraction; {results computed by |n_sin_cos|} */
+
+/* @ Given an integer |z| that is $2^{20}$ times an angle $\theta$ in degrees, */
+/* the purpose of |n_sin_cos(z)| is to set */
+/* |x=@t$r\cos\theta$@>| and |y=@t$r\sin\theta$@>| (approximately), */
+/* for some rather large number~|r|. The maximum of |x| and |y| */
+/* will be between $2^{28}$ and $2^{30}$, so that there will be hardly */
+/* any loss of accuracy. Then |x| and~|y| are divided by~|r|. */
+static int priv_mfweb_n_sin_cos(lua_State *L)
+{
+ nsincos(lua_tonumber(L,1));
+ return 0;
+}
+
+
+/* @ When a lot of work is being done on a particular edge structure, we plant */
+/* a pointer to its main header in the global variable |cur_edges|. */
+/* This saves us from having to pass this pointer as a parameter over and */
+/* over again between subroutines. */
+
+/* Similarly, |cur_wt| is a global weight that is being used by several */
+/* procedures at once. */
+
+/* @<Glob...@>= */
+/* @!cur_edges:pointer; {the edge structure of current interest} */
+/* @!cur_wt:integer; {the edge weight of current interest} */
+static int priv_mfweb_LUAGLOBALGET_cur_edges(lua_State *L)
+{
+ halfword p = curedges;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+
+/* @<Glob...@>= */
+/* @!cur_type:small_number; {the type of the expression just found} */
+/* @!cur_exp:integer; {the value of the expression just found} */
+static int priv_mfweb_LUAGLOBALGET_cur_exp(lua_State *L)
+{
+ halfword p = curexp;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+
+
+
+
+
+/* @d mem_top==30000 {largest index in the |mem| array dumped by \.{INIMF}; */
+/* must be substantially larger than |mem_min| */
+/* and not greater than |mem_max|} */
+static int priv_mfweb_LUAGLOBALGET_mem_top(lua_State *L)
+{
+ integer p = memtop;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+
+
+/* And there are two global variables that affect the rounding */
+/* decisions, as we'll see later; they are called |cur_pen| and |cur_path_type|. */
+/* The latter will be |double_path_code| if |make_spec| is being */
+/* applied to a double path.*/
+/* @!cur_pen:pointer; {an implicit input of |make_spec|, used in autorounding} */
+static int priv_mfweb_LUAGLOBALGET_cur_pen(lua_State *L)
+{
+ halfword p = curpen;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+
+/* @ The current octant code appears in a global variable. If, for example, */
+/* we have |octant=third_octant|, it means that a curve traveling in a north to */
+/* north-westerly direction has been rotated for the purposes of internal */
+/* calculations so that the |move| data travels in an east to north-easterly */
+/* direction. We want to unrotate as we update the edge structure. */
+/* */
+/* @<Glob...@>= */
+/* @!octant:first_octant..sixth_octant; {the current octant of interest} */
+static int priv_mfweb_LUAGLOBALGET_octant(lua_State *L)
+{
+ char p = octant;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+
+/* @ The |make_spec| routine has an interesting side effect, namely to set */
+/* the global variable |turning_number| to the number of times the tangent */
+/* vector of the given cyclic path winds around the origin. */
+/* */
+/* @<Glob...@>= */
+/* @!turning_number:integer; {another output of |make_spec|} */
+static int priv_mfweb_LUAGLOBALGET_turning_number(lua_State *L)
+{
+ integer p = turningnumber;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+
+
+/* @ \MF\ also has a bunch of internal parameters that a user might want to */
+/* fuss with. Every such parameter has an identifying code number, defined here. */
+/* Warning: these parameters must be the same of the original MF !! */
+#define tracing_titles 1 /*show titles online when they appear} */
+#define tracing_equations 2 /*show each variable when it becomes known} */
+#define tracing_capsules 3 /*show capsules too} */
+#define tracing_choices 4 /*show the control points chosen for paths} */
+#define tracing_specs 5 /*show subdivision of paths into octants before digitizing} */
+#define tracing_pens 6 /*show details of pens that are made} */
+#define tracing_commands 7 /*show commands and operations before they are performed} */
+#define tracing_restores 8 /*show when a variable or internal is restored} */
+#define tracing_macros 9 /*show macros before they are expanded} */
+#define tracing_edges 10 /*show digitized edges as they are computed} */
+#define tracing_output 11 /*show digitized edges as they are output} */
+#define tracing_stats 12 /*show memory usage at end of job} */
+#define tracing_online 13 /*show long diagnostics on terminal and in the log file} */
+#define year 14 /*the current year (e.g., 1984)} */
+#define month 15 /*the current month (e.g., 3 $\equiv$ March)} */
+#define day 16 /*the current day of the month} */
+#define time 17 /*the number of minutes past midnight when this job started} */
+#define char_code 18 /*the number of the next character to be output} */
+#define char_ext 19 /*the extension code of the next character to be output} */
+#define char_wd 20 /*the width of the next character to be output} */
+#define char_ht 21 /*the height of the next character to be output} */
+#define char_dp 22 /*the depth of the next character to be output} */
+#define char_ic 23 /*the italic correction of the next character to be output} */
+#define char_dx 24 /*the device's $x$ movement for the next character, in pixels} */
+#define char_dy 25 /*the device's $y$ movement for the next character, in pixels} */
+#define design_size 26 /*the unit of measure used for |char_wd..char_ic|, in points} */
+#define hppp 27 /*the number of horizontal pixels per point} */
+#define vppp 28 /*the number of vertical pixels per point} */
+#define x_offset 29 /*horizontal displacement of shipped-out characters} */
+#define y_offset 30 /*vertical displacement of shipped-out characters} */
+#define pausing 31 /*positive to display lines on the terminal before they are read} */
+#define showstopping 32 /*positive to stop after each \&{show} command} */
+#define fontmaking 33 /*positive if font metric output is to be produced} */
+#define proofing 34 /*positive for proof mode, negative to suppress output} */
+#define smoothing 35 /*positive if moves are to be ``smoothed''} */
+#define autorounding 36 /*controls path modification to ``good'' points} */
+#define granularity 37 /*autorounding uses this pixel size} */
+#define fillin 38 /*extra darkness of diagonal lines} */
+#define turning_check 39 /*controls reorientation of clockwise paths} */
+#define warning_check 40 /*controls error message when variable value is large} */
+#define boundary_char 41 /*the right boundary character for ligatures} */
+/* @d max_given_internal=41 */
+
+static int priv_mfweb_LUAGLOBALGET_char_code(lua_State *L)
+{
+ integer p = roundunscaled ( internal [char_code]) % 256 ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+static int priv_mfweb_LUAGLOBALGET_char_ext(lua_State *L)
+{
+ integer p = roundunscaled ( internal [char_ext]) ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+
+static int priv_mfweb_LUAGLOBALGET_char_wd(lua_State *L)
+{
+ integer p = internal [char_wd] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+static int priv_mfweb_LUAGLOBALGET_char_ht(lua_State *L)
+{
+ integer p = internal [char_ht] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+static int priv_mfweb_LUAGLOBALGET_char_dp(lua_State *L)
+{
+ integer p = internal [char_dp] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+static int priv_mfweb_LUAGLOBALGET_char_ic(lua_State *L)
+{
+ integer p = internal [char_ic] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_char_dx(lua_State *L)
+{
+ integer p = internal [char_dx] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_char_dy(lua_State *L)
+{
+ integer p = internal [char_dy] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_designsize(lua_State *L)
+{
+ integer p = internal [design_size] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_hppp(lua_State *L)
+{
+ integer p = internal [hppp] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_vppp(lua_State *L)
+{
+ integer p = internal [vppp] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_x_offset(lua_State *L)
+{
+ integer p = internal [x_offset] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_y_offset(lua_State *L)
+{
+ integer p = internal [y_offset] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_granularity(lua_State *L)
+{
+ integer p = internal [granularity] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_fillin(lua_State *L)
+{
+ integer p = internal [fillin] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_turning_check(lua_State *L)
+{
+ integer p = internal [turning_check] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mfweb_LUAGLOBALGET_boundary_char(lua_State *L)
+{
+ integer p = internal [boundary_char] ;
+ lua_pushnumber(L,p);
+ return 1;
+}
+
+static int priv_mflua_version(lua_State *L)
+{
+ lua_pushstring(L,MFLUA_VERSION);
+ return 1;
+}
+
+static int priv_mflua_banner(lua_State *L)
+{
+ lua_pushstring(L,BANNER);
+ return 1;
+}
+
+
+/**************************************************************/
+/* */
+/* otfcc private functions */
+/* */
+/**************************************************************/
+
+#ifdef MFLuaJIT
+static void lua_len (lua_State *L, int i) {
+ switch (lua_type(L, i)) {
+ case LUA_TSTRING:
+ lua_pushnumber(L, (lua_Number)lua_objlen(L, i));
+ break;
+ case LUA_TTABLE:
+ if (!luaL_callmeta(L, i, "__len"))
+ lua_pushnumber(L, (lua_Number)lua_objlen(L, i));
+ break;
+ case LUA_TUSERDATA:
+ if (luaL_callmeta(L, i, "__len"))
+ break;
+ /* FALLTHROUGH */
+ default:
+ luaL_error(L, "attempt to get length of a %s value",
+ lua_typename(L, lua_type(L, i)));
+ }
+}
+
+static int lua_absindex (lua_State *L, int i) {
+ if (i < 0 && i > LUA_REGISTRYINDEX)
+ i += lua_gettop(L) + 1;
+ return i;
+}
+static int lua_geti (lua_State *L, int index, lua_Integer i) {
+ index = lua_absindex(L, index);
+ lua_pushinteger(L, i);
+ lua_gettable(L, index);
+ return lua_type(L, -1);
+}
+#endif
+
+static int priv_mflua_otf_dump(lua_State *L) {
+ if (!lua_istable(L, -1)) {
+ fprintf(stderr, "! dump: expected a table\n");
+ lua_pop(L,1);
+ return 0;
+ } else {
+ /* table is in the stack at index '-1' */
+ size_t l=0;
+ int j;
+ char **av;
+
+ lua_len (L, -1);
+ l = (size_t)(lua_tonumber(L,-1));
+ lua_pop(L,1);
+ if (l==0 )
+ return 0;
+ av = malloc((l+1) * sizeof(char*));
+ if (av==NULL) {
+ fprintf(stderr, "! dump: unable to allocate av\n");
+ return 0;
+ }
+ av[0] = malloc((strlen("/dump")+1)*sizeof(char));
+ if (av[0]==NULL) {
+ fprintf(stderr, "! dump: unable to allocate av[0]\n");
+ return 0;
+ }
+ strcpy(av[0], "/dump");
+ /* fill the av array */
+ for(j=1;j<=l;j++){
+ const char *k;
+ lua_geti(L,-1,j);
+ k = lua_tostring(L, -1);
+ av[j] = malloc((strlen(k)+1)*sizeof(char));
+ if (av[j]==NULL) {
+ fprintf(stderr, "! dump: unable to allocate av[%d]\n",j);
+ return 0;
+ }
+ strcpy(av[j], k);
+ lua_pop(L,1);
+ }
+#if defined(NO_OTFCC)
+/* */
+#else
+ otfcc_dump(l+1,av);
+#endif
+ /* release the av */
+ free(av[0]);
+ for(j=1;j<=l;j++)
+ free(av[j]);
+ free(av);
+ return 0;
+ }
+}
+
+
+static int priv_mflua_otf_build(lua_State *L) {
+ if (!lua_istable(L, -1)) {
+ fprintf(stderr, "! build: expected a table\n");
+ lua_pop(L,1);
+ return 0;
+ } else {
+ /* table is in the stack at index '-1' */
+ size_t l=0;
+ int j;
+ char **av;
+
+ lua_len (L, -1);
+ l = (size_t)(lua_tonumber(L,-1)) ;
+ lua_pop(L,1);
+ if (l==0 )
+ return 0;
+ av = malloc((l+1) * sizeof(char*));
+ if (av==NULL) {
+ fprintf(stderr, "! build: unable to allocate av\n");
+ return 0;
+ }
+ av[0] = malloc((strlen("/build")+1)*sizeof(char));
+ if (av[0]==NULL) {
+ fprintf(stderr, "! build: unable to allocate av[0]\n");
+ return 0;
+ }
+ strcpy(av[0], "/build");
+ /* fill the av array */
+ for(j=1;j<=l;j++){
+ const char *k;
+ lua_geti(L,-1,j);
+ k = lua_tostring(L, -1);
+ av[j] = malloc((strlen(k)+1)*sizeof(char));
+ if (av[j]==NULL) {
+ fprintf(stderr, "! build: unable to allocate av[%d]\n",j);
+ return 0;
+ }
+ strcpy(av[j], k);
+ lua_pop(L,1);
+ }
+#if defined(NO_OTFCC)
+/* */
+#else
+ otfcc_build(l+1,av);
+#endif
+ /* release the av */
+ free(av[0]);
+ for(j=1;j<=l;j++)
+ free(av[j]);
+ free(av);
+ return 0;
+ }
+}
+
+
+
+/**************************************************************/
+/* */
+/* mflua layer */
+/* */
+/**************************************************************/
+static const struct luaL_Reg MFbuiltin_l[] = {
+ {"link", priv_mfweb_link},
+ {"info", priv_mfweb_info},
+ {"x_coord", priv_mfweb_x_coord},
+ {"y_coord", priv_mfweb_y_coord},
+ {"left_type", priv_mfweb_left_type},
+ {"right_type", priv_mfweb_right_type},
+ {"left_x", priv_mfweb_left_x},
+ {"left_y", priv_mfweb_left_y},
+ {"right_x", priv_mfweb_right_x},
+ {"right_y", priv_mfweb_right_y},
+ {"n_sin_cos", priv_mfweb_n_sin_cos},
+ {"cur_edges", priv_mfweb_LUAGLOBALGET_cur_edges},
+ {"cur_exp", priv_mfweb_LUAGLOBALGET_cur_exp},
+ {"mem_top", priv_mfweb_LUAGLOBALGET_mem_top},
+ {"cur_pen", priv_mfweb_LUAGLOBALGET_cur_pen},
+ {"octant", priv_mfweb_LUAGLOBALGET_octant},
+ {"char_code", priv_mfweb_LUAGLOBALGET_char_code},
+ {"char_ext", priv_mfweb_LUAGLOBALGET_char_ext},
+ {"char_wd", priv_mfweb_LUAGLOBALGET_char_wd},
+ {"char_ht", priv_mfweb_LUAGLOBALGET_char_ht},
+ {"char_dp", priv_mfweb_LUAGLOBALGET_char_dp},
+ {"char_ic", priv_mfweb_LUAGLOBALGET_char_ic},
+ {"char_dx", priv_mfweb_LUAGLOBALGET_char_dx},
+ {"char_dy", priv_mfweb_LUAGLOBALGET_char_dy},
+ {"designsize", priv_mfweb_LUAGLOBALGET_designsize},
+ {"hppp", priv_mfweb_LUAGLOBALGET_hppp},
+ {"vppp", priv_mfweb_LUAGLOBALGET_vppp},
+ {"x_offset", priv_mfweb_LUAGLOBALGET_x_offset},
+ {"y_offset", priv_mfweb_LUAGLOBALGET_y_offset},
+ {"granularity", priv_mfweb_LUAGLOBALGET_granularity},
+ {"fillin", priv_mfweb_LUAGLOBALGET_fillin},
+ {"turning_check", priv_mfweb_LUAGLOBALGET_turning_check},
+ {"boundary_char", priv_mfweb_LUAGLOBALGET_boundary_char},
+ {"turning_number", priv_mfweb_LUAGLOBALGET_turning_number},
+ {"mflua_version",priv_mflua_version},
+ {"mflua_banner",priv_mflua_banner},
+ {NULL, NULL} /* sentinel */
+};
+
+static struct luaL_Reg mflua_otfcc[] = {
+ { "build", priv_mflua_otf_build },
+ { "dump", priv_mflua_otf_dump },
+ { NULL, NULL}
+};
+
+
+#define lua_swap(L) lua_insert(L, -2)
+
+#define GETGLOBALTABLEMFLUA(a) lua_getglobal(L, "mflua");\
+ if (!lua_istable(L, -1)) { \
+ lua_pushstring(L,#a); \
+ lua_pushstring(L,":global table mflua not found"); \
+ lua_concat (L, 2); \
+ priv_lua_reporterrors(L, 1); \
+ } \
+
+
+
+int mfluabeginprogram(void)
+{
+ lua_State *L ;
+ char* luafile ;
+ int res ;
+
+ L = luaL_newstate();
+ luaL_openlibs(L);
+ Luas[0] = L;
+ /* register lua functions */
+ luaopen_kpse(L);
+ /* to be sure of having a clear stack */
+ lua_settop(L,0);
+
+
+ lua_getglobal(L, "mflua");
+ if (!lua_istable(L, -1)) {
+ lua_pop(L,1);
+ lua_newtable(L);
+ lua_setglobal(L,"mflua");
+ /* check it */
+ lua_getglobal(L,"mflua");
+ if (!lua_istable(L, -1)) {
+ printf("mflua table NOT registered!\n");
+ } else {
+ lua_pushstring(L,"MFbuiltin");
+#ifdef MFLuaJIT
+ /* 5.1 */
+ luaJIT_setmode(L, 0, LUAJIT_MODE_ENGINE|LUAJIT_MODE_OFF);
+ lua_newtable(L);
+ luaL_register (L,NULL,MFbuiltin_l);
+#else
+ luaL_newlib(L,MFbuiltin_l);
+#endif
+ lua_settable(L, -3);
+ /* set the otfcc table */
+ lua_pushstring(L,"otf");
+#ifdef MFLuaJIT
+ /* 5.1 */
+ lua_newtable(L);
+ luaL_register (L,NULL,mflua_otfcc);
+#else
+ luaL_newlib(L,mflua_otfcc);
+#endif
+ lua_settable(L, -3);
+
+ }
+ lua_pop(L,1);
+ }
+
+
+ luafile = kpse_find_file("mflua.lua", kpse_lua_format, 0);
+ if (luafile==NULL) {
+ res = 1;
+ lua_pushstring(L,"mflua.lua not found.");
+ priv_lua_reporterrors(L, res);
+ goto EXIT;
+ }
+ res = luaL_loadfile(L, luafile);
+ free(luafile);
+ if ( res==LUA_OK ) {
+ if((res=lua_pcall(L,0,0,0))){
+ priv_lua_reporterrors(L, res);
+ goto EXIT;
+ }
+ } else {
+ priv_lua_reporterrors(L, res);
+ goto EXIT;
+ }
+ /* Still a chance that mflua is around */
+ GETGLOBALTABLEMFLUA(mfluabeginprogram);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"begin_program");
+ if((res=lua_pcall(L,0,0,0)))
+ priv_lua_reporterrors(L, res);
+ }
+ EXIT:
+ lua_settop(L,0);
+ return 0;
+}
+
+/* /\* TODO*\/ */
+/* int mfluaendprogram(void) */
+/* { */
+/* lua_State *L; */
+/* char* luafile; */
+/* int res; */
+
+/* L = Luas[0]; */
+/* GETGLOBALTABLEMFLUA(mfluaendprogram); */
+/* luafile = kpse_find_file("end_program.lua", kpse_lua_format, 0); */
+/* if (luafile==NULL) { */
+/* res = 1; */
+/* lua_pushstring(L,"end_program.lua not found"); */
+/* priv_lua_reporterrors(L, res); */
+/* lua_settop(L,0); */
+/* return 0; */
+/* } */
+/* priv_lua_writemessage(L,"(",luafile,")",1); */
+/* res = luaL_loadfile(L, luafile); */
+/* free(luafile); */
+/* if ( res==0 ) { */
+/* res = lua_pcall(L, 0, 0, 0); */
+/* } */
+/* /\* stackdump_g(L); *\/ */
+/* priv_lua_reporterrors(L, res); */
+/* lua_settop(L,0); */
+/* return 0; */
+/* } */
+
+int mfluaendprogram(void)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaendprogram);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"end_program");
+ /* do the call (0 arguments, 0 result) */
+ if((res=lua_pcall(L, 0, 0, 0))){
+ lua_pushstring(L,"error in end_program:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPREstartofMF(void)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREstartofMF);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"PRE_start_of_MF");
+ /* do the call (0 arguments, 0 result) */
+ if((res=lua_pcall(L, 0, 0, 0))){
+ lua_pushstring(L,"error in PRE_start_of_MF:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPREmaincontrol(void)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREmaincontrol);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_main_control");
+ /* do the call (0 arguments, 0 result) */
+ if((res=lua_pcall(L, 0, 0, 0))){
+ lua_pushstring(L,"error in PRE_main_control:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+int mfluaPOSTmaincontrol(void)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTmaincontrol);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_main_control");
+ /* do the call (0 arguments, 0 result) */
+ if((res=lua_pcall(L, 0, 0, 0))){
+ lua_pushstring(L,"error in POST_main_control:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+
+}
+
+
+int mfluainitialize(void)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluainitialize);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "mflua_initialize");
+ /* do the call (0 arguments, 0 result) */
+ if((res=lua_pcall(L, 0, 0, 0))){
+ lua_pushstring(L,"error in mflua_initialize:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPOSTfinalcleanup(void)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTfinalcleanup);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_final_cleanup");
+ /* do the call (0 arguments, 0 result) */
+ if((res=lua_pcall(L, 0, 0, 0))){
+ lua_pushstring(L,"error in POST_final_cleanup:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+/* Not a good way: */
+/* 1) these definitions are taken from mfcoerc.h which is generated at run-time */
+/* 2) too much coupling with webc2c translation of mf.web*/
+/* */
+/* #define printdiagnostic(s, t, nuline) zprintdiagnostic((strnumber) (s), (strnumber) (t), (boolean) (nuline)) */
+/* #define print(s) zprint((integer) (s)) */
+/* #define printarg(q, n, b) zprintarg((halfword) (q), (integer) (n), (halfword) (b) */
+/* int mfluaprintpath P3C(halfword, h , strnumber, s , boolean, nuline) */
+/* { */
+/* fprintf(stderr,"\n! %d \n",s); */
+/* printdiagnostic ( 517 , s , nuline ) ; */
+/* println () ; */
+/* print ( 518 ) ; */
+/* println () ; */
+/* fprintf(stderr,"\n! %s\n","*end***************"); */
+
+/* lua_State *L = Luas[0]; */
+/* char* file = kpse_find_file("print_path.lua", kpse_lua_format, 0); */
+/* int res = luaL_loadfile(L, file); */
+/* if (file) free (file); */
+/* if ( res==0 ) { */
+/* res = lua_pcall(L, 0, 0, 0); */
+/* } */
+/* // */
+/* //stackdump_g(L); */
+
+/* // */
+/* priv_lua_reporterrors(L, res); */
+/* return 0; */
+
+/* } */
+
+int mfluaprintpath(halfword h, strnumber s, boolean nuline)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaprintpath);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "printpath");
+ lua_pushnumber(L, h); /* push 1st argument */
+ lua_pushnumber(L, s); /* push 2nd argument */
+ lua_pushnumber(L, nuline); /* push 3nd argument */
+ /* do the call (3 arguments, 0 result) */
+ if((res=lua_pcall(L, 3, 0, 0))){
+ lua_pushstring(L,"error in printpath:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaprintedges(strnumber s, boolean nuline, integer xoff, integer yoff)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaprintedges);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "printedges");
+ lua_pushnumber(L, s); /* push 1st argument */
+ lua_pushnumber(L, nuline); /* push 2nd argument */
+ lua_pushnumber(L, xoff); /* push 3nd argument */
+ lua_pushnumber(L, yoff); /* push 4nd argument */
+ /* do the call (4 arguments, 0 result) */
+ if((res=lua_pcall(L, 4, 0, 0))){
+ lua_pushstring(L,"error in printedges:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+/* */
+/* Sensor before and after offset_prep */
+/* */
+int mfluaPREoffsetprep(halfword c, halfword h)
+{
+
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREoffsetprep);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_offset_prep");
+ lua_pushnumber(L, c); /* push 1st argument */
+ lua_pushnumber(L, h); /* push 2nd argument */
+ /* do the call (2 arguments, 0 result) */
+ if((res=lua_pcall(L, 2, 0, 0))){
+ lua_pushstring(L,"error in PRE_offset_prep:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPOSToffsetprep(halfword c, halfword h)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSToffsetprep);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_offset_prep");
+ lua_pushnumber(L, c); /* push 1st argument */
+ lua_pushnumber(L, h); /* push 2nd argument */
+ /* do the call (2 arguments, 0 result) */
+ if((res=lua_pcall(L, 2, 0, 0))){
+ lua_pushstring(L,"error in POST_offset_prep:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPREmakespecrhs(halfword rhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREmakespecrhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_make_spec_rhs");
+ lua_pushnumber(L, rhs); /* push 1st argument */
+ /* do the call (1 arguments, 0result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in PRE_make_spec_rhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPOSTmakespecrhs(halfword rhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTmakespecrhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_make_spec_rhs");
+ lua_pushnumber(L, rhs); /* push 1st argument */
+ /* do the call (1 arguments, 0result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in POST_make_spec_rhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPREmakespeclhs(halfword lhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREmakespeclhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_make_spec_lhs");
+ lua_pushnumber(L, lhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in PRE_make_spec_lhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+int mfluaPOSTmakespeclhs(halfword lhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTmakespeclhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_make_spec_lhs");
+ lua_pushnumber(L, lhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in POST_make_spec_lhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPREfillenveloperhs(halfword rhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREfillenveloperhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_fill_envelope_rhs");
+ lua_pushnumber(L, rhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in PRE_fill_envelope_rhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPOSTfillenveloperhs(halfword rhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTfillenveloperhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_fill_envelope_rhs");
+ lua_pushnumber(L, rhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in POST_fill_envelope_rhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPREfillenvelopelhs(halfword lhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREfillenvelopelhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_fill_envelope_lhs");
+ lua_pushnumber(L, lhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in PRE_fill_envelope_lhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPOSTfillenvelopelhs(halfword lhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTfillenvelopelhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_fill_envelope_lhs");
+ lua_pushnumber(L, lhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in POST_fill_envelope_lhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPREfillspecrhs(halfword rhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREfillspecrhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_fill_spec_rhs");
+ lua_pushnumber(L, rhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in PRE_fill_spec_rhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+int mfluaPOSTfillspecrhs(halfword rhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTfillspecrhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_fill_spec_rhs");
+ lua_pushnumber(L, rhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in POST_fill_spec_rhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+int mfluaPREfillspeclhs(halfword lhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREfillspeclhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_fill_spec_lhs");
+ L = Luas[0];
+ lua_pushnumber(L, lhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in PRE_fill_spec_lhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPOSTfillspeclhs(halfword lhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTfillspeclhs);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_fill_spec_lhs");
+ L = Luas[0];
+ lua_pushnumber(L, lhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in POST_fill_spec_lhs:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPREmovetoedges(halfword lhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREmovetoedges);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "PRE_move_to_edges");
+ lua_pushnumber(L, lhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in PRE_move_to_edges:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPOSTmovetoedges(halfword lhs)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTmovetoedges);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1, "POST_move_to_edges");
+ lua_pushnumber(L, lhs); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in POST_move_to_edges:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPREmakechoices(halfword p)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREmakechoices);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"PRE_make_choices"); /* function to be called */
+ lua_pushnumber(L, p); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in PRE_make_choices:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPOSTmakechoices(halfword p)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTmakechoices);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"POST_make_choices"); /* function to be called */
+ lua_pushnumber(L, p); /* push 1st argument */
+ /* do the call (1 arguments, 0 result) */
+ if((res=lua_pcall(L, 1, 0, 0))){
+ lua_pushstring(L,"error in POST_make_choices:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaprintretrogradeline(integer x0, integer y0, integer cur_x, integer cur_y)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaprintretrogradeline);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"print_retrograde_line");
+ lua_pushnumber(L, x0); /* push 1st argument */
+ lua_pushnumber(L, y0); /* push 2nd argument */
+ lua_pushnumber(L, cur_x); /* push 3th argument */
+ lua_pushnumber(L, cur_y); /* push 4th argument */
+ /* do the call (4 arguments, 0 result) */
+ if((res=lua_pcall(L, 4, 0, 0))){
+ lua_pushstring(L,"error in print_retrograde_line:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaPREmakeellipse(integer major_axis, integer minor_axis, integer theta_angle , integer tx_val, integer ty_val,integer q)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPREmakeellipse);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"PRE_make_ellipse");
+ lua_pushnumber(L, major_axis); /* push 1st argument */
+ lua_pushnumber(L, minor_axis); /* push 2nd argument */
+ lua_pushnumber(L, theta_angle); /* push 3th argument */
+ lua_pushnumber(L, tx_val); /* push 4th argument */
+ lua_pushnumber(L, ty_val); /* push 5th argument */
+ lua_pushnumber(L, q); /* push 6th argument */
+ /* do the call (6 arguments, 0 result) */
+ if((res=lua_pcall(L, 6, 1, 0))){
+ lua_pushstring(L,"error in PRE_make_ellipse:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+int mfluaPOSTmakeellipse(integer major_axis, integer minor_axis, integer mfl_theta , integer mfl_tx, integer mfl_ty,integer q)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaPOSTmakeellipse);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"POST_make_ellipse");
+ lua_pushnumber(L, major_axis); /* push 1st argument */
+ lua_pushnumber(L, minor_axis); /* push 2nd argument */
+ lua_pushnumber(L, mfl_theta); /* push 3th argument */
+ lua_pushnumber(L, mfl_tx); /* push 4th argument */
+ lua_pushnumber(L, mfl_ty); /* push 5th argument */
+ lua_pushnumber(L, q); /* push 6th argument */
+ /* do the call (6 arguments, 0 result) */
+ if((res=lua_pcall(L, 6, 1, 0))){
+ lua_pushstring(L,"error in POST_make_ellipse:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaprinttransitionlinefrom(integer x, integer y)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaprinttransitionlinefrom);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"print_transition_line_from");
+ lua_pushnumber(L, x); /* push 1st argument */
+ lua_pushnumber(L, y); /* push 2nd argument */
+ /* do the call (2 arguments, 0 result) */
+ if((res=lua_pcall(L, 2, 0, 0))){
+ lua_pushstring(L,"error in print_transition_line_from:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+int mfluaprinttransitionlineto(integer x, integer y)
+{
+ lua_State *L;
+ int res;
+
+ L = Luas[0];
+ GETGLOBALTABLEMFLUA(mfluaprinttransitionlineto);
+ if (lua_istable(L, -1)) {
+ lua_getfield(L,-1,"print_transition_line_to");
+ lua_pushnumber(L, x); /* push 1st argument */
+ lua_pushnumber(L, y); /* push 2nd argument */
+ /* do the call (2 arguments, 0 result) */
+ if((res=lua_pcall(L, 2, 0, 0))){
+ lua_pushstring(L,"error in print_transition_line_to:");
+ lua_swap(L);lua_concat (L, 2);
+ priv_lua_reporterrors(L, res);
+ }
+ }
+ lua_settop(L,0);
+ return 0;
+}
+
+
+
+#define priv_append_char(c) do { \
+ strpool[poolptr]=c; \
+ poolptr++; \
+} while(0)
+
+#define priv_str_room(l) do { \
+ if ((poolptr + l) > maxpoolptr) { \
+ if ((poolptr + l) > poolsize) { \
+ fprintf(stderr,"\n! (Lua) MFLua capacity exceeded, sorry [pool size=%ld]\nIf you really absolutely need more capacity,\nyou can ask a wizard to enlarge me.\n",poolsize-initpoolptr); \
+ exit(1); \
+ } \
+ maxpoolptr = poolptr + l; \
+ } \
+} while (0)
+
+int mfluarunscript(halfword j, halfword first_val, halfword limit)
+{
+ int i ;
+ lua_State *L ;
+ unsigned char last_char;
+ int error;
+ const char *str;
+ size_t len;
+ L = Luas[0];
+ last_char = strpool[j+limit-first_val] ;
+ /* end of a C string */
+ strpool[j+limit-first_val] = '\0';
+ str = (const char *)(strpool+j) ;
+ /* do the call (0 arguments, 1 result) */
+ error = (luaL_loadstring(L, str) || lua_pcall(L, 0, 1, 0)) ;
+ strpool[j+limit-first_val] = last_char;
+ if(error) {
+ priv_lua_reporterrors(L,error);
+ } else {
+ /* retrieve result */
+ str = lua_tolstring(L, -1,&len);
+ priv_str_room(len);
+ for(i=0;i<len;i++){
+ priv_append_char( (unsigned char)(*(str+i))) ;
+ }
+ lua_pop(L, 1); /* pop returned value */
+ }
+ return 0;
+}
+
+/* TODO: check if shell_cmd_is_allowed makes sense */
+int shell_cmd_is_allowed(const char *cmd, char **safecmd, char **cmdname){return 1;}