Commit | Line | Data |
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27da23d5 | 1 | /* Copyright (c) 2004-2005 Nokia. All rights reserved. */ |
d1dd14d1 | 2 | |
27da23d5 JH |
3 | /* The CPerlBase class is licensed under the same terms as Perl itself. */ |
4 | ||
5 | /* See PerlBase.pod for documentation. */ | |
6 | ||
7 | #define PERLBASE_CPP | |
8 | ||
9 | #include <e32cons.h> | |
10 | #include <e32keys.h> | |
11 | #include <utf.h> | |
12 | ||
13 | #include "PerlBase.h" | |
14 | ||
15 | const TUint KPerlConsoleBufferMaxTChars = 0x0200; | |
16 | const TUint KPerlConsoleNoPos = 0xffff; | |
17 | ||
18 | CPerlBase::CPerlBase() | |
19 | { | |
20 | } | |
21 | ||
22 | EXPORT_C void CPerlBase::Destruct() | |
23 | { | |
4dc4bba6 | 24 | dTHX; |
27da23d5 JH |
25 | iState = EPerlDestroying; |
26 | if (iConsole) { | |
27 | iConsole->Printf(_L("[Any key to continue]")); | |
28 | iConsole->Getch(); | |
29 | } | |
30 | if (iPerl) { | |
31 | (void)perl_destruct(iPerl); | |
32 | perl_free(iPerl); | |
33 | iPerl = NULL; | |
34 | PERL_SYS_TERM(); | |
35 | } | |
36 | if (iConsole) { | |
37 | delete iConsole; | |
38 | iConsole = NULL; | |
39 | } | |
40 | if (iConsoleBuffer) { | |
41 | free(iConsoleBuffer); | |
42 | iConsoleBuffer = NULL; | |
43 | } | |
44 | #ifdef PERL_GLOBAL_STRUCT | |
45 | if (iVars) { | |
46 | PerlInterpreter* my_perl = NULL; | |
47 | free_global_struct(iVars); | |
48 | iVars = NULL; | |
49 | } | |
50 | #endif | |
51 | } | |
52 | ||
53 | CPerlBase::~CPerlBase() | |
54 | { | |
55 | Destruct(); | |
56 | } | |
57 | ||
43639bac AR |
58 | EXPORT_C CPerlBase* CPerlBase::NewInterpreter(TBool aCloseStdlib, |
59 | void (*aStdioInitFunc)(void*), | |
60 | void *aStdioInitCookie) | |
61 | { | |
62 | CPerlBase* self = new (ELeave) CPerlBase; | |
63 | self->iCloseStdlib = aCloseStdlib; | |
64 | self->iStdioInitFunc = aStdioInitFunc; | |
65 | self->iStdioInitCookie = aStdioInitCookie; | |
66 | self->ConstructL(); | |
67 | PERL_APPCTX_SET(self); | |
68 | return self; | |
69 | } | |
70 | ||
27da23d5 JH |
71 | EXPORT_C CPerlBase* CPerlBase::NewInterpreterL(TBool aCloseStdlib, |
72 | void (*aStdioInitFunc)(void*), | |
73 | void *aStdioInitCookie) | |
74 | { | |
75 | CPerlBase* self = | |
76 | CPerlBase::NewInterpreterLC(aCloseStdlib, | |
77 | aStdioInitFunc, | |
78 | aStdioInitCookie); | |
79 | CleanupStack::Pop(self); | |
80 | return self; | |
81 | } | |
82 | ||
83 | EXPORT_C CPerlBase* CPerlBase::NewInterpreterLC(TBool aCloseStdlib, | |
84 | void (*aStdioInitFunc)(void*), | |
85 | void *aStdioInitCookie) | |
86 | { | |
87 | CPerlBase* self = new (ELeave) CPerlBase; | |
88 | CleanupStack::PushL(self); | |
89 | self->iCloseStdlib = aCloseStdlib; | |
90 | self->iStdioInitFunc = aStdioInitFunc; | |
91 | self->iStdioInitCookie = aStdioInitCookie; | |
92 | self->ConstructL(); | |
93 | PERL_APPCTX_SET(self); | |
94 | return self; | |
95 | } | |
96 | ||
97 | static int _console_stdin(void* cookie, char* buf, int n) | |
98 | { | |
99 | return ((CPerlBase*)cookie)->ConsoleRead(0, buf, n); | |
100 | } | |
101 | ||
102 | static int _console_stdout(void* cookie, const char* buf, int n) | |
103 | { | |
104 | return ((CPerlBase*)cookie)->ConsoleWrite(1, buf, n); | |
105 | } | |
106 | ||
107 | static int _console_stderr(void* cookie, const char* buf, int n) | |
108 | { | |
109 | return ((CPerlBase*)cookie)->ConsoleWrite(2, buf, n); | |
110 | } | |
111 | ||
112 | void CPerlBase::StdioRewire(void *arg) { | |
113 | _REENT->_sf[0]._cookie = (void*)this; | |
114 | _REENT->_sf[0]._read = &_console_stdin; | |
115 | _REENT->_sf[0]._write = 0; | |
116 | _REENT->_sf[0]._seek = 0; | |
117 | _REENT->_sf[0]._close = 0; | |
118 | ||
119 | _REENT->_sf[1]._cookie = (void*)this; | |
120 | _REENT->_sf[1]._read = 0; | |
121 | _REENT->_sf[1]._write = &_console_stdout; | |
122 | _REENT->_sf[1]._seek = 0; | |
123 | _REENT->_sf[1]._close = 0; | |
124 | ||
125 | _REENT->_sf[2]._cookie = (void*)this; | |
126 | _REENT->_sf[2]._read = 0; | |
127 | _REENT->_sf[2]._write = &_console_stderr; | |
128 | _REENT->_sf[2]._seek = 0; | |
129 | _REENT->_sf[2]._close = 0; | |
130 | } | |
131 | ||
132 | void CPerlBase::ConstructL() | |
133 | { | |
134 | iState = EPerlNone; | |
135 | #ifdef PERL_GLOBAL_STRUCT | |
136 | PerlInterpreter *my_perl = 0; | |
137 | iVars = init_global_struct(); | |
138 | User::LeaveIfNull(iVars); | |
139 | #endif | |
140 | iPerl = perl_alloc(); | |
141 | User::LeaveIfNull(iPerl); | |
142 | iState = EPerlAllocated; | |
143 | perl_construct(iPerl); // returns void | |
8e920bd3 Z |
144 | { |
145 | PerlInterpreter *my_perl = iPerl; | |
146 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; | |
147 | } | |
27da23d5 JH |
148 | if (!iStdioInitFunc) { |
149 | iConsole = | |
150 | Console::NewL(_L("Perl Console"), | |
151 | TSize(KConsFullScreen, KConsFullScreen)); | |
152 | iConsoleBuffer = | |
153 | (TUint16*)malloc(sizeof(TUint) * | |
154 | KPerlConsoleBufferMaxTChars); | |
155 | User::LeaveIfNull(iConsoleBuffer); | |
156 | iConsoleUsed = 0; | |
157 | #ifndef USE_PERLIO | |
158 | iStdioInitFunc = &StdioRewire; | |
159 | #endif | |
160 | } | |
161 | if (iStdioInitFunc) | |
162 | iStdioInitFunc(iStdioInitCookie); | |
163 | iReadFunc = NULL; | |
164 | iWriteFunc = NULL; | |
165 | iState = EPerlConstructed; | |
166 | } | |
167 | ||
168 | EXPORT_C PerlInterpreter* CPerlBase::GetInterpreter() | |
169 | { | |
170 | return (PerlInterpreter*) iPerl; | |
171 | } | |
172 | ||
173 | #ifdef PERL_MINIPERL | |
174 | static void boot_DynaLoader(pTHX_ CV* cv) { } | |
175 | #else | |
176 | EXTERN_C void boot_DynaLoader(pTHX_ CV* cv); | |
177 | #endif | |
178 | ||
179 | static void xs_init(pTHX) | |
180 | { | |
181 | dXSUB_SYS; | |
182 | newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, __FILE__); | |
183 | } | |
184 | ||
185 | EXPORT_C TInt CPerlBase::RunScriptL(const TDesC& aFileName, | |
186 | int argc, | |
187 | char **argv, | |
188 | char *envp[]) { | |
189 | TBuf8<KMaxFileName> scriptUtf8; | |
190 | TInt error; | |
191 | error = CnvUtfConverter::ConvertFromUnicodeToUtf8(scriptUtf8, aFileName); | |
192 | User::LeaveIfError(error); | |
193 | char *filename = (char*)scriptUtf8.PtrZ(); | |
194 | struct stat st; | |
195 | if (stat(filename, &st) == -1) | |
196 | return KErrNotFound; | |
197 | if (argc < 2) | |
198 | return KErrGeneral; /* Anything better? */ | |
199 | char **Argv = (char**)malloc(argc * sizeof(char*)); | |
200 | User::LeaveIfNull(Argv); | |
201 | TCleanupItem ArgvCleanupItem = TCleanupItem(free, Argv); | |
202 | CleanupStack::PushL(ArgvCleanupItem); | |
203 | Argv[0] = "perl"; | |
204 | if (argv && argc > 2) | |
205 | for (int i = 2; i < argc - 1; i++) | |
206 | Argv[i] = argv[i]; | |
207 | Argv[argc - 1] = filename; | |
208 | error = this->ParseAndRun(argc, Argv, envp); | |
209 | CleanupStack::PopAndDestroy(Argv); | |
210 | Argv = 0; | |
211 | return error == 0 ? KErrNone : KErrGeneral; | |
212 | } | |
d1dd14d1 | 213 | |
27da23d5 JH |
214 | |
215 | EXPORT_C int CPerlBase::Parse(int argc, char *argv[], char *envp[]) | |
216 | { | |
217 | if (iState == EPerlConstructed) { | |
218 | const char* const NullArgv[] = { "perl", "-e", "0" }; | |
219 | if (argc == 0 || argv == 0) { | |
220 | argc = 3; | |
221 | argv = (char**) NullArgv; | |
222 | } | |
223 | PERL_SYS_INIT(&argc, &argv); | |
224 | int parsed = perl_parse(iPerl, xs_init, argc, argv, envp); | |
225 | if (parsed == 0) | |
226 | iState = EPerlParsed; | |
227 | return parsed; | |
228 | } else | |
229 | return -1; | |
230 | } | |
231 | ||
232 | EXPORT_C void CPerlBase::SetupExit() | |
233 | { | |
234 | if (iState == EPerlParsed) { | |
235 | diTHX; | |
236 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; | |
237 | // PL_perl_destruct level of 2 would be nice but | |
238 | // it causes "Unbalanced scopes" for some reason. | |
239 | PL_perl_destruct_level = 1; | |
240 | } | |
241 | } | |
242 | ||
243 | EXPORT_C int CPerlBase::Run() | |
244 | { | |
245 | if (iState == EPerlParsed) { | |
246 | SetupExit(); | |
247 | iState = EPerlRunning; | |
248 | int ran = perl_run(iPerl); | |
249 | iState = (ran == 0) ? EPerlSuccess : EPerlFailure; | |
d1dd14d1 | 250 | return ran; |
27da23d5 JH |
251 | } else |
252 | return -1; | |
253 | } | |
254 | ||
255 | EXPORT_C int CPerlBase::ParseAndRun(int argc, char *argv[], char *envp[]) | |
256 | { | |
257 | int parsed = Parse(argc, argv, envp); | |
258 | int ran = (parsed == 0) ? Run() : -1; | |
259 | return ran; | |
260 | } | |
261 | ||
262 | int CPerlBase::ConsoleReadLine() | |
263 | { | |
264 | if (!iConsole) | |
265 | return -EIO; | |
266 | ||
267 | TUint currX = KPerlConsoleNoPos; | |
268 | TUint currY = KPerlConsoleNoPos; | |
269 | TUint prevX = KPerlConsoleNoPos; | |
270 | TUint prevY = KPerlConsoleNoPos; | |
271 | TUint maxX = KPerlConsoleNoPos; | |
272 | TUint offset = 0; | |
273 | ||
274 | for (;;) { | |
275 | TKeyCode code = iConsole->Getch(); | |
276 | ||
277 | if (code == EKeyLineFeed || code == EKeyEnter) { | |
278 | if (offset < KPerlConsoleBufferMaxTChars) { | |
279 | iConsoleBuffer[offset++] = '\n'; | |
280 | iConsole->Printf(_L("\n")); | |
281 | iConsoleBuffer[offset++] = 0; | |
282 | } | |
283 | break; | |
d1dd14d1 | 284 | } |
27da23d5 JH |
285 | else { |
286 | TBool doBackward = EFalse; | |
287 | TBool doBackspace = EFalse; | |
288 | ||
289 | prevX = currX; | |
290 | prevY = currY; | |
291 | if (code == EKeyBackspace) { | |
292 | if (offset > 0) { | |
293 | iConsoleBuffer[--offset] = 0; | |
294 | doBackward = ETrue; | |
295 | doBackspace = ETrue; | |
296 | } | |
297 | } | |
298 | else if (offset < KPerlConsoleBufferMaxTChars) { | |
299 | TChar ch = TChar(code); | |
300 | ||
301 | if (ch.IsPrint()) { | |
302 | iConsoleBuffer[offset++] = (unsigned short)code; | |
303 | iConsole->Printf(_L("%c"), code); | |
304 | } | |
305 | } | |
306 | currX = iConsole->WhereX(); | |
307 | currY = iConsole->WhereY(); | |
308 | if (maxX == KPerlConsoleNoPos && prevX != KPerlConsoleNoPos && | |
309 | prevY != KPerlConsoleNoPos && currY == prevY + 1) | |
310 | maxX = prevX; | |
311 | if (doBackward) { | |
312 | if (currX > 0) | |
313 | iConsole->SetPos(currX - 1); | |
314 | else if (currY > 0) | |
315 | iConsole->SetPos(maxX, currY - 1); | |
316 | if (doBackspace) { | |
317 | TUint nowX = iConsole->WhereX(); | |
318 | TUint nowY = iConsole->WhereY(); | |
319 | iConsole->Printf(_L(" ")); /* scrub */ | |
320 | iConsole->SetPos(nowX, nowY); | |
321 | } | |
322 | } | |
323 | } | |
324 | } | |
325 | ||
326 | return offset; | |
327 | } | |
328 | ||
329 | int CPerlBase::ConsoleRead(const int fd, char* buf, int n) | |
330 | { | |
331 | if (iReadFunc) | |
332 | return iReadFunc(fd, buf, n); | |
333 | ||
334 | if (!iConsole) { | |
335 | errno = EIO; | |
336 | return -1; | |
337 | } | |
d1dd14d1 | 338 | |
27da23d5 JH |
339 | if (n < 0) { |
340 | errno = EINVAL; | |
341 | return -1; | |
342 | } | |
d1dd14d1 | 343 | |
27da23d5 JH |
344 | if (n == 0) |
345 | return 0; | |
d1dd14d1 | 346 | |
27da23d5 JH |
347 | TBuf8<4 * KPerlConsoleBufferMaxTChars> aBufferUtf8; |
348 | TBuf16<KPerlConsoleBufferMaxTChars> aBufferUtf16; | |
349 | int length = ConsoleReadLine(); | |
d1dd14d1 | 350 | int i; |
27da23d5 JH |
351 | |
352 | iConsoleUsed += length; | |
353 | ||
354 | aBufferUtf16.SetLength(length); | |
355 | for (i = 0; i < length; i++) | |
356 | aBufferUtf16[i] = iConsoleBuffer[i]; | |
d1dd14d1 | 357 | aBufferUtf8.SetLength(4 * length); |
27da23d5 JH |
358 | |
359 | CnvUtfConverter::ConvertFromUnicodeToUtf8(aBufferUtf8, aBufferUtf16); | |
360 | ||
361 | char *pUtf8 = (char*)aBufferUtf8.PtrZ(); | |
362 | int nUtf8 = aBufferUtf8.Size(); | |
363 | if (nUtf8 > n) | |
364 | nUtf8 = n; /* Potential data loss. */ | |
365 | #ifdef PERL_SYMBIAN_CONSOLE_UTF8 | |
366 | for (i = 0; i < nUtf8; i++) | |
367 | buf[i] = pUtf8[i]; | |
368 | #else | |
369 | dTHX; | |
370 | for (i = 0; i < nUtf8; i+= UTF8SKIP(pUtf8 + i)) { | |
4b88fb76 KW |
371 | unsigned long u = utf8_to_uvchr_buf((U8*)(pUtf8 + i), |
372 | (U8*)(pUtf8 + nUtf8), | |
373 | 0); | |
27da23d5 JH |
374 | if (u > 0xFF) { |
375 | iConsole->Printf(_L("(keycode > 0xFF)\n")); | |
376 | buf[i] = 0; | |
377 | return -1; | |
378 | } | |
379 | buf[i] = u; | |
d1dd14d1 | 380 | } |
27da23d5 JH |
381 | #endif |
382 | if (nUtf8 < n) | |
383 | buf[nUtf8] = 0; | |
384 | return nUtf8; | |
385 | } | |
386 | ||
387 | int CPerlBase::ConsoleWrite(const int fd, const char* buf, int n) | |
388 | { | |
389 | if (iWriteFunc) | |
390 | return iWriteFunc(fd, buf, n); | |
391 | ||
392 | if (!iConsole) { | |
393 | errno = EIO; | |
394 | return -1; | |
395 | } | |
396 | ||
397 | if (n < 0) { | |
398 | errno = EINVAL; | |
399 | return -1; | |
400 | } | |
401 | ||
402 | if (n == 0) | |
403 | return 0; | |
404 | ||
405 | int wrote = 0; | |
406 | #ifdef PERL_SYMBIAN_CONSOLE_UTF8 | |
407 | dTHX; | |
408 | if (is_utf8_string((U8*)buf, n)) { | |
409 | for (int i = 0; i < n; i += UTF8SKIP(buf + i)) { | |
4b88fb76 | 410 | TChar u = valid_utf8_to_uvchr((U8*)(buf + i), 0); |
27da23d5 JH |
411 | iConsole->Printf(_L("%c"), u); |
412 | wrote++; | |
413 | } | |
414 | } else { | |
415 | iConsole->Printf(_L("(malformed utf8: ")); | |
416 | for (int i = 0; i < n; i++) | |
417 | iConsole->Printf(_L("%02x "), buf[i]); | |
418 | iConsole->Printf(_L(")\n")); | |
419 | } | |
420 | #else | |
421 | for (int i = 0; i < n; i++) { | |
422 | iConsole->Printf(_L("%c"), buf[i]); | |
423 | } | |
424 | wrote = n; | |
425 | #endif | |
426 | iConsoleUsed += wrote; | |
427 | return n; | |
428 | } | |
429 |