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* Changing read syntax for character literals, because we are going toKaz Kylheku2011-11-156-57/+139
| | | | | | | | | | | | | | | | | | | | | | | | | | | | need the single quote in the Lisp way for suppressing evaluation, eventually. I'm going with a Scheme-compatible syntax for character literals. It has a richer repertoire of standard character names than Common Lisp, and has a x convention for coding characters in hex. * lib.c (obj_print): Print characters in a Scheme-like way. * parser.h (end_of_char): New function declared. * parser.l (grammar): Implement rules for #\ syntax, with involving new HASH_BACKSLASH token. (end_of_regex): Enhancement: added check that end_of_regex is called in correct state, like the one in end_of_char. (end_of_char): New function. * parser.y (repeat_rep_helper, o_elems_transform, define_transform, lit_char_helper): Functions changed to static. (rl): Function moved down, past the grammar section. (HASH_BACKSLASH): New terminal symbol. (chrlit): Grammar redesigned. (char_from_name): New function. * txr.1: Character syntax documented.
* Bugfix: horizontal directives were being treated as vertical,Kaz Kylheku2011-11-142-12/+32
| | | | | | | | | | | | | | | | | | | | | and the trailing material silently ignored. For instance @(bind a 1)@(bind b 2). This was going to v_bind, v_bind does not check for the trailing material and doe snot call decline_s. The result was that b was not bound. Correct behavior is to process these binds in match_line. * match.c (match_line): Check if a directive IS found in the vertical table, and if so report a different error message. The fallback case is that there is no such function or directive. (v_next): Do not check for obsolete syntax any more. This case will not occur any more due to the following changes. (match_files): Do not defer opening the file if the data starts with an incorrectly written next directive. Do not look up and process a vertical directive or function call if it is followed by more material in the same line. Thus vertical directives can longer receive trailing material. This fixes the bug of horizontal directives being treated as vertical
* * debug.c (debug): Eliminated duplicate code.Kaz Kylheku2011-11-132-12/+26
| | | | Implemented better way of printing character context.
* Adding a debugger. This is an experimental prototype.Kaz Kylheku2011-11-1311-8/+295
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile (OBJS): New object file debug.o. * dep.mk: Updated. * match.c (h_fun): Use debug_begin and debug_end macros to set up a debug frame for backtracing. (match_line, match_files): Call debug_check to give debugger a chance to instrument call. (v_fun): Use debug_begin and debug_end macros to set up a debug frame for backtracing. Call debug_check to give debugger a chance to instrument call. * stream.c (struct strm_ops): New function pointer, flush. (stdio_maybe_write_error): Wrong word in error message corrected. (stdio_flush): New static function. (stdio_ops, pipe_ops): New function entered into tables. (flush_stream): New function. * stream.h (flush_stream): Declared. * txr.c (help): New options documented. (main): call to debug_init added. New debug options parsed and opt_debugger set accordingly. * unwind.c (uw_push_debug, uw_current_frame): New function. * unwind.h (uw_frtype): New enumeration member UW_DBG. (struct uw_debug): New frame variant. (union uw_frame): New member, db. (uw_push_debug, uw_current_frame): Declared, * debug.c: New file. * debug.h: New file.
* Fix regression in earlier commit:Kaz Kylheku2011-11-132-2/+12
| | | | | | | | | "Eliminate line numbers from the abstract syntax tree representation of the TXR query." * match.c (match_funcall): Remove spurious object being added to the front of a form where a line number used to be.
* * match.c: Removed <assert.h>Kaz Kylheku2011-11-133-2/+6
| | | | * txr.c: Likewise.
* Bug #34813Kaz Kylheku2011-11-132-0/+11
| | | | | | * match.c (v_freeform): Fail if the data is null, to avoid a false positive match as an empty line, followed by the type error of incrementing a nonexistent data line number.
* * parser.y: Correctly record line number info for regex.Kaz Kylheku2011-11-122-1/+5
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* Improved line number reporting in errors and debug traces.Kaz Kylheku2011-11-122-33/+28
| | | | | | | | * match.c (debugf): Function removed. (dest_bind, v_output, v_eof): Use debuglf instead of debugf, and sem_error instead of uw_throwf. (match_files): Likewise, and file_err is called with form.
* Eliminate line numbers from the abstract syntaxKaz Kylheku2011-11-126-243/+301
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tree representation of the TXR query. * match.c (debuglf, sem_error, file_err, eval_form): Line number argument replaced with the form to which the situation pertains. Location information is pulled from the hash table entry associated with the form. (dest_set, dest_bind, eval_form, vars_to_bindings): Context argument renamed since it isn't a line number. (struct match_line_ctx): spec_lineno member removed. (ml_all, ml_bindings_specline): lineno parameter removed. (LOG_MISMATCH, LOG_MATCH, h_var, h_skip, h_coll, h_parallel, match_line): Pass elem to debuglf instead of line number. as context. (h_trailer, h_eol): define elem for LOG_MISMATCH and LOG_MATCH macros. (h_fun): Pass elem variable to debuglf instead of line number. Body stored as a simple cons cell once again (no line number). (do_output_line): Line number parameter removed. Pass specline to sem_error instead of line number. (do_output): Adjusted for one less parameter in do_output_line. (mf_from_ml): Pass one less parameter to ml_all. Conversion of specline to spec is just a wrapping into a nested list, with no line number. (spec_bind): Linenumber variable parameter removed from macro. Definition simplified. (v_skip): Pass specline to debuglf instead of spec_linenum, which is no longer computed. (v_trailer): Use new definition of specline. Pass first_spec to sem_error instead of spec_linenum. Computation of ff_specline no longer has to skip line number. (v_freeform, v_block, v_accept_fail, v_next, v_parallel, v_gather, v_collect, v_merge, v_bind, hv_trampoline, v_cat, v_output, v_try, v_defex, v_throw, v_deffilter, v_filter, match_funcall): Use new definition of specline. Pass first_spec to sem_error instead of spec_linenum. (v_forget_local): Specline computed differently since there is no linenumber to skip. (h_define): Back to implified representation of function with no extra cell for line number. (v_define, v_fun): Pass first_spec to sem_error instead of spec_linenum. Back to implified representation of function with no extra cell for line number. (match_files): first_spec_item computed differently. Pass first_spec to sem_error instead of spec_linenum. * parser.h (source_loc): Declared. * parser.l (source_loc): New function. * parser.y:x (grammar): Removed line numbers from abstract sytnax tree. A few more places needed the annotation of forms with location info, and a couple of cases of the need to propagate the info was
* Infrastructure for storing line number informationKaz Kylheku2011-11-1212-82/+299
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | outside of the code, in hash tables. * filter.c (make_trie, trie_add): Update to three-argument make_hash. * hash.c (struct hash): New members, hash_fun, assoc_fun acons_new_l_fun. (ll_hash): Renamed to equal_hash. (eql_hash): New static function. (cobj_hash_op): Follows ll_hash rename. (hash_grow): Use new function indirection to call hashing function. (make_hash): New argument to specify type of hashing. Initialize new members of struct hash. (gethash_l, gethash, remhash): Use function indirection for hashing and chain search and update. (pushhash): New function. * hash.h (make_hash): Declaration updated with new parameter. (pushhash): Declared. * lib.c (eql_f): New global variable. (eql, assq, aconsq_new, aconsq_new_l): New functions. (make_package): Updated to new three-argument make_hash. (obj_init): gc-protect and initialize new variable eql_f. * lib.h (eql, assq, aconsq_new, aconsq_new_l): Declared. * match.c (dir_tables_init): Updated to there-argument make_hash. * parser.h (form_to_ln_hash, ln_to_forms_hash): Global variables declared. * parser.l (form_to_ln_hash, ln_to_forms_hash): New global variables. (grammar): Set yylval.lineno for tokens that are classified to that type in parser.y. (parse_init): Initialize and gc-protect new global variables. * parser.y (rl): New static helper function. (%union): New member, lineno. (ALL, SOME, NONE, MAYBE, CASES, CHOOSE, GATHER, AND, OR, END, COLLECT, UNTIL, COLL, OUTPUT, REPEAT, REP, SINGLE, FIRST, LAST, EMPTY, DEFINE, TRY, CATCH, FINALLY, ERRTOK, '('): Reclassified as lineno type. In the grammar, these keywords can thus provide a stable line number from the lexer. (grammar): Numerous rules updated to add constructs to the line number hash tables via the rl helper. * dep.mk: Updated. * Makefile (depend): Use the installed, stable txr in the system path to update dependencies rather than locally built ./txr, to prevent the problem that txr is broken because out out-of-date dependencies, and thus cannot regenerate dependencies.
* Bug #34799: errors in horizontal functionsKaz Kylheku2011-11-102-6/+21
| | | | | | | | | | | reported to caller line number. * match.c (ml_bindings_specline): Extended with extra argument (h_coll): Pass nil for new argument of ml_bindings_specline. (h_fun): Extract line number from stored function. Pass line number to ml_bindings_specline. (h_define, v_define): Store function as a cons cell containing the line number and body.
* * txr.1: Document -l/--lisp-bindings.Kaz Kylheku2011-11-102-0/+7
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* * match.c (opt_nobindings, opt_arraydims): GlobalKaz Kylheku2011-11-105-17/+44
| | | | | | | | | | | | | | | | | variables moved from parser.l. (opt_lisp_bindings): New variable. (dump_bindings): Dump Lisp syntax bindings on standard output if opt_lisp_bindings is set. (v_cat): Do not complain about trailing material; this is not compatible with horizontal cat. * parser.l (opt_nobindings, opt_arraydims): Moved to match.c. * txr.c (txr_main): New options, --lisp-bindings and the equivalent -l. * txr.h: opt_lisp_bindings declared.
* Task #11583Kaz Kylheku2011-11-102-0/+16
| | | | | | | * match.c (dir_tables_init): Mapping flatten_s, forget_s, local_s, merge_s, set_s, cat_s and filter_s to hv_trampoline function, thereby making all these directives work in horizontal contexts in one fell swoop.
* Task #11583Kaz Kylheku2011-11-102-7/+27
| | | | | | | | | More generic approach. * match.c (h_bind): Function removed. (hv_trampoline): New function. (dir_tables_init): hv_trampoline installed in h_directive_table instead of h_bind.
* * parser.l: Fixed wrong error message.Kaz Kylheku2011-11-102-1/+5
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* * match.c (v_fun): Bugfix: if there is material afterKaz Kylheku2011-11-103-20/+53
| | | | | | | the function call, decline it; it is a horizontal context. * txr.1: Discussion and examples of calls that are in a horizontal context.
* Minor.Kaz Kylheku2011-11-091-1/+1
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* * txr.1: Documented horizontal function definitions and callsKaz Kylheku2011-11-092-37/+129
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* Task #11583Kaz Kylheku2011-11-092-0/+28
| | | | | | | @(bind) in horizontal mode. * match.c (mf_from_ml, h_bind): New functions. (dir_tables_init): h_bind entered into table.
* * match.c (h_fun, v_fun): Slightly more informative tracing from failedKaz Kylheku2011-11-092-2/+7
| | | | function calls.
* * txr.vim: Missing coll keyword added.Kaz Kylheku2011-11-092-1/+5
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* Task #11431. First cut at horizontal match functions.Kaz Kylheku2011-11-083-25/+171
| | | | | | | | | | | | | | * match.c (h_fun): New function. (match_line): Rearranged not to do hash lookup if the directive is a regex or list. If hash lookup fails, try it as a horizontal function. (h_define): New function. Handles horizontal function syntax embedded in line. (v_define): Handle the horizontal function syntax occuring on a line by itself. The function info is now stored as a cons cell whose car is the vertical function and cdr the horizontal one. (v_fun): Adjust to new function storage convention. (dir_tables_init): h_define entered in table. * parser.y: Added syntax for horizontal define.
* * txr.vim: Make sure whitespace is recognized after @.Kaz Kylheku2011-11-062-4/+8
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* Task #11581 & bugfix.Kaz Kylheku2011-11-063-5/+73
| | | | | | | | | | | | * match.c (noval_s): New symbol variable. (vars_to_bindings): Use a default value of noval_s to indicate a required variable, rather than nil, which would not allow an optional variable with a default value of nil. (h_coll, v_collect): Check default value against noval_s, rather than nil. (v_gather): Support :vars keyword. (syms_init): Initialize new symbol variable. * txr.1: Documented gather's :vars parameter.
* Task #11581Kaz Kylheku2011-11-067-5/+171
| | | | | | | | | | | | | | | | | * match.c (gather_s): New keyword variable. (v_gather): New function. (syms_init): gather_s initialized. (dir_tables_init): v_gather entered into table. * match.h (gather_s): Declared. * parser.l: GATHER token scanning added. * parser.y: GATHER token added. gather_clause nonterminal added. * txr.1: New directive documented. * txr.vim: gather keyword introduced.
* * lib.c (env): Fixed inappropriate cut-and-pasted error messages.Kaz Kylheku2011-11-052-3/+15
| | | | | Check for failure of GetEnvironmentStringsW, and call FreeEnvironmentStringsW is called.
* * match.c (dir_tables_init): Bugfix: horizontal @(some)Kaz Kylheku2011-11-052-0/+6
| | | | directive not included in dispatch table.
* * configure: Bugfixes. Before the compiler tests, we mustKaz Kylheku2011-11-052-0/+15
| | | | | | | remove the conftest executable, to make sure that the next test will try to re-make it. The configure runs fast enough that the new conftest.c does not always have a timestamp which is newer than previous conftest executable.
* Added #define NOMINMAX so <windows.h> since we have our own macros.Kaz Kylheku2011-11-051-0/+1
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* Task #11442. Make work on MingW.Kaz Kylheku2011-11-053-4/+69
| | | | | | | * configure: Test for environ and GetEnvironmentStrings. * lib.c: Conditionally include <windows.h>. (env): Implemented for POSIX and Windows with #ifdefs.
* Task #11442. Access to environment variables.Kaz Kylheku2011-11-055-10/+68
| | | | | | | | | | | | | | * lib.c (env_list): New static variable. (env): New function. (match): Declaration of nonexistent function removed. (obj_init): New variable gc-protected. * lib.h (env): Declared. * match.c (env_k): New symbol variable. (v_next): Implemented :env. * txr.1: @(next :env) described.
* * hash.c (ll_hash): Added a break in the case that handlesKaz Kylheku2011-11-042-0/+7
| | | | | pointer hashing of identity-equal objects. Without this, if the pointer size is not 4 or 8, we fall through to the next case.
* * txr.c (help): Change year from 2009 to 2011.Kaz Kylheku2011-11-042-1/+5
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* * tests/008/students.txr: Use disciplined collect with :vars.Kaz Kylheku2011-11-032-4/+5
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* * tests/008/students.txr: Regexes removed.Kaz Kylheku2011-11-032-2/+6
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* * txr.vim: Character literals.Kaz Kylheku2011-11-031-4/+6
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* * txr.vim: Eliminated useless skip arguments from several regions.Kaz Kylheku2011-11-021-3/+3
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* * txr.vim: Highlight variables inside directives and lists.Kaz Kylheku2011-11-021-2/+4
| | | | Also, highlight embedded metalists as regions.
* * txr.vim: Added missing keywords.Kaz Kylheku2011-11-022-2/+9
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* * genman.txr: Use filter for mapping month digits to names.Kaz Kylheku2011-11-012-38/+14
| | | | Added comment about where to find the right man2html.
* * txr.vim: Added installation instructions.Kaz Kylheku2011-11-012-0/+15
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* Syntax highlighting for Vim.Kaz Kylheku2011-11-012-0/+54
| | | | * txr.vim: New file.
* Version 041txr-041Kaz Kylheku2011-10-304-4/+49
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* We don't include headers in headers in this project.Kaz Kylheku2011-10-304-3/+11
| | | | | | | | * parser.h: Do not include <stdio.h> * regex.c: Include <limits.h> * regex.h: Do not include <limits.h>
* Bug #34691Kaz Kylheku2011-10-302-227/+220
| | | | | | | | | | | | | | | | Changing the parameter passing convention for vertical directives. They take one parameter which is a pointer, rather than a copy of the structure. They do not have to perform a structure assignment when returning next_spec_k. * match.c (v_match_func): Typedef updated to new function signature. (v_skip, v_trailer, v_freeform, v_block, v_accept, v_accept, v_next, v_parallel, v_collect, v_flatten, v_forget, v_forget, v_merge, v_bind, v_set, v_cat, v_output, v_define, v_try, v_defex, v_throw, v_deffilter, v_filter, v_eof, v_fun): Refactored. (match_files): Updated dispatch logic to new style calls. (match_funcall): Updated to new way of calling v_fun.
* * HACKING: Grammar fixes. Expanded on lazy strings a little bit.Kaz Kylheku2011-10-292-35/+74
| | | | | Added something about mem_t *, and a few extra words here and there, including a blurb about a Valgrind debugging caveat.
* Bug #34657Kaz Kylheku2011-10-272-12/+64
| | | | | | * txr.1: Added explanations about the differences between empty streams and empty lines, and to watch out when passing empty strings to @(next :string ...).
* Bugfix: prepared_error_message variable needs to be gc-protected.Kaz Kylheku2011-10-264-1/+18
| | | | | | | | | * parser.h (parse_init): Declared. * parser.l (parse_init): New function. * txr.c (main): Call parse_init. (txr_main): No need to gc-protect yyin_stream since parse_init does it.
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