shenleiandClaude Opus 5
5fad769ee8
The embedded 40250 script layer needs its own interpreter on five platforms. 2.7 is end-of-life, so nothing can be fetched from the target SDKs and the source is vendored (official 2.7.18 tarball, trimmed to 25MB; Lib/ stays for step 3's python27.zip). cpython-2.7.18/CMakeLists.txt builds one `mtpython` static library from exactly the 133 objects the reference libpython2.7.a contains, off by default behind -DMTGODOT_EMBED_PYTHON=ON. The source list and the built-in module table (config/config.c, 39 entries) are shared; pyconfig.h is a probe result and is not, so each platform keeps its own under config/<platform>/, regenerated by tools/py_embed/gen_pyconfig.sh and checked against the shared table. Three vendor patches, documented in docs/THIRD-PARTY.md: configure/configure.ac learn arm64 on macOS, and posixmodule.c undefines the process-control calls it hard-defines past pyconfig.h when building for iOS. macOS (ctest python.embed: every builtin imports, codecs and pickle work off the vendored Lib/), Android arm64 and iOS arm64 build. Linux needs a Linux host and Windows needs a MinGW-vs-MSVC decision; both are noted for step 4. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
95 lines
2.0 KiB
C
95 lines
2.0 KiB
C
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/* Grammar interface */
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#ifndef Py_GRAMMAR_H
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#define Py_GRAMMAR_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "bitset.h" /* Sigh... */
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/* A label of an arc */
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typedef struct {
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int lb_type;
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char *lb_str;
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} label;
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#define EMPTY 0 /* Label number 0 is by definition the empty label */
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/* A list of labels */
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typedef struct {
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int ll_nlabels;
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label *ll_label;
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} labellist;
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/* An arc from one state to another */
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typedef struct {
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short a_lbl; /* Label of this arc */
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short a_arrow; /* State where this arc goes to */
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} arc;
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/* A state in a DFA */
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typedef struct {
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int s_narcs;
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arc *s_arc; /* Array of arcs */
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/* Optional accelerators */
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int s_lower; /* Lowest label index */
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int s_upper; /* Highest label index */
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int *s_accel; /* Accelerator */
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int s_accept; /* Nonzero for accepting state */
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} state;
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/* A DFA */
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typedef struct {
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int d_type; /* Non-terminal this represents */
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char *d_name; /* For printing */
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int d_initial; /* Initial state */
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int d_nstates;
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state *d_state; /* Array of states */
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bitset d_first;
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} dfa;
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/* A grammar */
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typedef struct {
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int g_ndfas;
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dfa *g_dfa; /* Array of DFAs */
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labellist g_ll;
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int g_start; /* Start symbol of the grammar */
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int g_accel; /* Set if accelerators present */
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} grammar;
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/* FUNCTIONS */
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grammar *newgrammar(int start);
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void freegrammar(grammar *g);
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dfa *adddfa(grammar *g, int type, char *name);
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int addstate(dfa *d);
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void addarc(dfa *d, int from, int to, int lbl);
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dfa *PyGrammar_FindDFA(grammar *g, int type);
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int addlabel(labellist *ll, int type, char *str);
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int findlabel(labellist *ll, int type, char *str);
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char *PyGrammar_LabelRepr(label *lb);
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void translatelabels(grammar *g);
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void addfirstsets(grammar *g);
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void PyGrammar_AddAccelerators(grammar *g);
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void PyGrammar_RemoveAccelerators(grammar *);
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void printgrammar(grammar *g, FILE *fp);
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void printnonterminals(grammar *g, FILE *fp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_GRAMMAR_H */
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