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Diffstat (limited to 'gfx/graphite2/src/inc/Error.h')
| -rw-r--r-- | gfx/graphite2/src/inc/Error.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/gfx/graphite2/src/inc/Error.h b/gfx/graphite2/src/inc/Error.h new file mode 100644 index 000000000..07d70b78e --- /dev/null +++ b/gfx/graphite2/src/inc/Error.h @@ -0,0 +1,135 @@ +/* GRAPHITE2 LICENSING + + Copyright 2013, SIL International + All rights reserved. + + This library is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2.1 of License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should also have received a copy of the GNU Lesser General Public + License along with this library in the file named "LICENSE". + If not, write to the Free Software Foundation, 51 Franklin Street, + Suite 500, Boston, MA 02110-1335, USA or visit their web page on the + internet at http://www.fsf.org/licenses/lgpl.html. + +Alternatively, the contents of this file may be used under the terms of the +Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public +License, as published by the Free Software Foundation, either version 2 +of the License or (at your option) any later version. +*/ +#pragma once + +// numbers are explicitly assigned for future proofing + +namespace graphite2 +{ + +class Error +{ +public: + Error() : _e(0) {}; + operator bool() { return (_e != 0); } + int error() { return _e; } + void error(int e) { _e = e; } + bool test(bool pr, int err) { return (_e = int(pr) * err); } + +private: + int _e; +}; + +enum errcontext { + EC_READGLYPHS = 1, // while reading glyphs + EC_READSILF = 2, // in Silf table + EC_ASILF = 3, // in Silf %d + EC_APASS = 4, // in Silf %d, pass %d + EC_PASSCCODE = 5, // in pass constraint code for Silf %d, pass %d + EC_ARULE = 6, // in Silf %d, pass %d, rule %d + EC_ASTARTS = 7, // in Silf %d, pass %d, start state %d + EC_ATRANS = 8, // in Silf %d, pass %d, fsm state %d + EC_ARULEMAP = 9 // in Silf %d, pass %d, state %d +}; + +enum errors { + E_OUTOFMEM = 1, // Out of memory + E_NOGLYPHS = 2, // There are no glyphs in the font + E_BADUPEM = 3, // The units per em for the font is bad (0) + E_BADCMAP = 4, // The font does not contain any useful cmaps + E_NOSILF = 5, // Missing Silf table + E_TOOOLD = 6, // Silf table version is too old + E_BADSIZE = 7, // context object has the wrong structural size +// Silf Subtable Errors take a Silf subtable number * 256 in the context + E_BADMAXGLYPH = 8, // Silf max glyph id is too high + E_BADNUMJUSTS = 9, // Number of Silf justification blocks is too high + E_BADENDJUSTS = 10, // Silf justification blocks take too much of the Silf table space + E_BADCRITFEATURES = 11, // Critical features section in a Silf table is too big + E_BADSCRIPTTAGS = 12, // Silf script tags area is too big + E_BADAPSEUDO = 13, // The pseudo glyph attribute number is too high + E_BADABREAK = 14, // The linebreak glyph attribute number is too high + E_BADABIDI = 15, // The bidi glyph attribute number is too high + E_BADAMIRROR = 16, // The mirrored glyph attribute number is too high + E_BADNUMPASSES = 17, // The number of passes is > 128 + E_BADPASSESSTART = 18, // The Silf table is too small to hold any passes + E_BADPASSBOUND = 19, // The positioning pass number is too low or the substitution pass number is too high + E_BADPPASS = 20, // The positioning pass number is too high + E_BADSPASS = 21, // the substitution pass number is too high + E_BADJPASSBOUND = 22, // the justification pass must be higher than the positioning pass + E_BADJPASS = 23, // the justification pass is too high + E_BADALIG = 24, // the number of initial ligature component glyph attributes is too high + E_BADBPASS = 25, // the bidi pass number is specified and is either too high or too low + E_BADNUMPSEUDO = 26, // The number of pseudo glyphs is too high + E_BADCLASSSIZE = 27, // The size of the classes block is bad + E_TOOMANYLINEAR = 28, // The number of linear classes in the silf table is too high + E_CLASSESTOOBIG = 29, // There are too many classes for the space allocated in the Silf subtable + E_MISALIGNEDCLASSES = 30, // The class offsets in the class table don't line up with the number of classes + E_HIGHCLASSOFFSET = 31, // The class offsets point out of the class table + E_BADCLASSOFFSET = 32, // A class offset is less than one following it + E_BADCLASSLOOKUPINFO = 33, // The search header info for a non-linear class has wrong values in it +// Pass subtable errors. Context has pass number * 65536 + E_BADPASSSTART = 34, // The start offset for a particular pass is bad + E_BADPASSEND = 35, // The end offset for a particular pass is bad + E_BADPASSLENGTH = 36, // The length of the pass is too small + E_BADNUMTRANS = 37, // The number of transition states in the fsm is bad + E_BADNUMSUCCESS = 38, // The number of success states in the fsm is bad + E_BADNUMSTATES = 39, // The number of states in the fsm is bad + E_NORANGES = 40, // There are no columns in the fsm + E_BADRULEMAPLEN = 41, // The size of the success state to rule mapping is bad + E_BADCTXTLENBOUNDS = 42, // The precontext maximum is greater than its minimum + E_BADCTXTLENS = 43, // The lists of rule lengths or pre context lengths is bad + E_BADPASSCCODEPTR = 44, // The pass constraint code position does not align with where the forward reference says it should be + E_BADRULECCODEPTR = 45, // The rule constraint code position does not align with where the forward reference says it should be + E_BADCCODELEN = 46, // Bad rule/pass constraint code length + E_BADACTIONCODEPTR = 47, // The action code position does not align with where the forward reference says it should be + E_MUTABLECCODE = 48, // Constraint code edits slots. It shouldn't. + E_BADSTATE = 49, // Bad state transition referencing an illegal state + E_BADRULEMAPPING = 50, // The structure of the rule mapping is bad + E_BADRANGE = 51, // Bad column range structure including a glyph in more than one column + E_BADRULENUM = 52, // A reference to a rule is out of range (too high) + E_BADACOLLISION = 53, // Bad Silf table collision attribute number (too high) + E_BADEMPTYPASS = 54, // Can't have empty passes (no rules) except for collision passes + E_BADSILFVERSION = 55, // The Silf table has a bad version (probably too high) + E_BADCOLLISIONPASS = 56, // Collision flags set on a non positioning pass + E_BADNUMCOLUMNS = 57, // Arbitrarily limit number of columns in fsm +// Code errors + E_CODEFAILURE = 60, // Base code error. The following subcodes must align with Machine::Code::status_t in Code.h + E_CODEALLOC = 61, // Out of memory + E_INVALIDOPCODE = 62, // Invalid op code + E_UNIMPOPCODE = 63, // Unimplemented op code encountered + E_OUTOFRANGECODE = 64, // Code argument out of range + E_BADJUMPCODE = 65, // Code jumps past end of op codes + E_CODEBADARGS = 66, // Code arguments exhausted + E_CODENORETURN = 67, // Missing return type op code at end of code + E_CODENESTEDCTXT = 68, // Nested context encountered in code +// Compression errors + E_BADSCHEME = 69, + E_SHRINKERFAILED = 70, +}; + +} + |