Remove xfa/src/fxfa/src/common and xfa/src/fxfa/src

This Cl moves the code in xfa/src/fxfa/src/common to the diretory which
contains the respective implementations and removes the xfa/src/fxfa/src/common
directory. It them moves all of the code in xfa/src/fxfa/src up one level and
removes the xfa/src/fxfa/src
directory.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1770073003 .

1 files changed, 552 insertions, 0 deletions

diff --git a/xfa/src/fxfa/fm2js/xfa_lexer.cpp b/xfa/src/fxfa/fm2js/xfa_lexer.cpp
new file mode 100644
index 0000000000..f93fa839d3
--- /dev/null
+++ b/xfa/src/fxfa/fm2js/xfa_lexer.cpp
@@ -0,0 +1,552 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "xfa/src/fxfa/fm2js/xfa_lexer.h"
+
+#include "core/include/fxcrt/fx_ext.h"
+
+namespace {
+
+struct XFA_FMDChar {
+  static const FX_WCHAR* inc(const FX_WCHAR*& p) {
+    ++p;
+    return p;
+  }
+  static const FX_WCHAR* dec(const FX_WCHAR*& p) {
+    --p;
+    return p;
+  }
+  static uint16_t get(const FX_WCHAR* p) { return *p; }
+  static FX_BOOL isWhiteSpace(const FX_WCHAR* p) {
+    return (*p) == 0x09 || (*p) == 0x0b || (*p) == 0x0c || (*p) == 0x20;
+  }
+  static FX_BOOL isLineTerminator(const FX_WCHAR* p) {
+    return *p == 0x0A || *p == 0x0D;
+  }
+  static FX_BOOL isBinary(const FX_WCHAR* p) {
+    return (*p) >= '0' && (*p) <= '1';
+  }
+  static FX_BOOL isOctal(const FX_WCHAR* p) {
+    return (*p) >= '0' && (*p) <= '7';
+  }
+  static FX_BOOL isDigital(const FX_WCHAR* p) {
+    return (*p) >= '0' && (*p) <= '9';
+  }
+  static FX_BOOL isHex(const FX_WCHAR* p) {
+    return isDigital(p) || ((*p) >= 'a' && (*p) <= 'f') ||
+           ((*p) >= 'A' && (*p) <= 'F');
+  }
+  static FX_BOOL isAlpha(const FX_WCHAR* p) {
+    return ((*p) <= 'z' && (*p) >= 'a') || ((*p) <= 'Z' && (*p) >= 'A');
+  }
+  static FX_BOOL isAvalid(const FX_WCHAR* p, FX_BOOL flag = 0);
+  static FX_BOOL string2number(const FX_WCHAR* s,
+                               FX_DOUBLE* pValue,
+                               const FX_WCHAR*& pEnd);
+  static FX_BOOL isUnicodeAlpha(uint16_t ch);
+};
+
+inline FX_BOOL XFA_FMDChar::isAvalid(const FX_WCHAR* p, FX_BOOL flag) {
+  if (*p == 0) {
+    return 1;
+  }
+  if ((*p <= 0x0A && *p >= 0x09) || *p == 0x0D ||
+      (*p <= 0xd7ff && *p >= 0x20) || (*p <= 0xfffd && *p >= 0xe000)) {
+    return 1;
+  }
+  if (!flag) {
+    if (*p == 0x0B || *p == 0x0C) {
+      return 1;
+    }
+  }
+  return 0;
+}
+
+inline FX_BOOL XFA_FMDChar::string2number(const FX_WCHAR* s,
+                                          FX_DOUBLE* pValue,
+                                          const FX_WCHAR*& pEnd) {
+  if (s) {
+    *pValue = wcstod((wchar_t*)s, (wchar_t**)&pEnd);
+  }
+  return 0;
+}
+
+inline FX_BOOL XFA_FMDChar::isUnicodeAlpha(uint16_t ch) {
+  if (ch == 0 || ch == 0x0A || ch == 0x0D || ch == 0x09 || ch == 0x0B ||
+      ch == 0x0C || ch == 0x20 || ch == '.' || ch == ';' || ch == '"' ||
+      ch == '=' || ch == '<' || ch == '>' || ch == ',' || ch == '(' ||
+      ch == ')' || ch == ']' || ch == '[' || ch == '&' || ch == '|' ||
+      ch == '+' || ch == '-' || ch == '*' || ch == '/') {
+    return FALSE;
+  }
+  return TRUE;
+}
+
+const XFA_FMKeyword keyWords[] = {
+    {TOKand, 0x00000026, L"&"},
+    {TOKlparen, 0x00000028, L"("},
+    {TOKrparen, 0x00000029, L")"},
+    {TOKmul, 0x0000002a, L"*"},
+    {TOKplus, 0x0000002b, L"+"},
+    {TOKcomma, 0x0000002c, L","},
+    {TOKminus, 0x0000002d, L"-"},
+    {TOKdot, 0x0000002e, L"."},
+    {TOKdiv, 0x0000002f, L"/"},
+    {TOKlt, 0x0000003c, L"<"},
+    {TOKassign, 0x0000003d, L"="},
+    {TOKgt, 0x0000003e, L">"},
+    {TOKlbracket, 0x0000005b, L"["},
+    {TOKrbracket, 0x0000005d, L"]"},
+    {TOKor, 0x0000007c, L"|"},
+    {TOKdotscream, 0x0000ec11, L".#"},
+    {TOKdotstar, 0x0000ec18, L".*"},
+    {TOKdotdot, 0x0000ec1c, L".."},
+    {TOKle, 0x000133f9, L"<="},
+    {TOKne, 0x000133fa, L"<>"},
+    {TOKeq, 0x0001391a, L"=="},
+    {TOKge, 0x00013e3b, L">="},
+    {TOKdo, 0x00020153, L"do"},
+    {TOKkseq, 0x00020676, L"eq"},
+    {TOKksge, 0x000210ac, L"ge"},
+    {TOKksgt, 0x000210bb, L"gt"},
+    {TOKif, 0x00021aef, L"if"},
+    {TOKin, 0x00021af7, L"in"},
+    {TOKksle, 0x00022a51, L"le"},
+    {TOKkslt, 0x00022a60, L"lt"},
+    {TOKksne, 0x00023493, L"ne"},
+    {TOKksor, 0x000239c1, L"or"},
+    {TOKnull, 0x052931bb, L"null"},
+    {TOKbreak, 0x05518c25, L"break"},
+    {TOKksand, 0x09f9db33, L"and"},
+    {TOKend, 0x0a631437, L"end"},
+    {TOKeof, 0x0a63195a, L"eof"},
+    {TOKfor, 0x0a7d67a7, L"for"},
+    {TOKnan, 0x0b4f91dd, L"nan"},
+    {TOKksnot, 0x0b4fd9b1, L"not"},
+    {TOKvar, 0x0c2203e9, L"var"},
+    {TOKthen, 0x2d5738cf, L"then"},
+    {TOKelse, 0x45f65ee9, L"else"},
+    {TOKexit, 0x4731d6ba, L"exit"},
+    {TOKdownto, 0x4caadc3b, L"downto"},
+    {TOKreturn, 0x4db8bd60, L"return"},
+    {TOKinfinity, 0x5c0a010a, L"infinity"},
+    {TOKendwhile, 0x5c64bff0, L"endwhile"},
+    {TOKforeach, 0x67e31f38, L"foreach"},
+    {TOKendfunc, 0x68f984a3, L"endfunc"},
+    {TOKelseif, 0x78253218, L"elseif"},
+    {TOKwhile, 0x84229259, L"while"},
+    {TOKendfor, 0x8ab49d7e, L"endfor"},
+    {TOKthrow, 0x8db05c94, L"throw"},
+    {TOKstep, 0xa7a7887c, L"step"},
+    {TOKupto, 0xb5155328, L"upto"},
+    {TOKcontinue, 0xc0340685, L"continue"},
+    {TOKfunc, 0xcdce60ec, L"func"},
+    {TOKendif, 0xe0e8fee6, L"endif"},
+};
+
+const XFA_FM_TOKEN KEYWORD_START = TOKdo;
+const XFA_FM_TOKEN KEYWORD_END = TOKendif;
+
+}  // namespace
+
+const FX_WCHAR* XFA_FM_KeywordToString(XFA_FM_TOKEN op) {
+  if (op < KEYWORD_START || op > KEYWORD_END)
+    return L"";
+  return keyWords[op].m_keyword;
+}
+
+CXFA_FMToken::CXFA_FMToken() : m_type(TOKreserver), m_uLinenum(1) {}
+
+CXFA_FMToken::CXFA_FMToken(FX_DWORD uLineNum)
+    : m_type(TOKreserver), m_uLinenum(uLineNum) {}
+
+CXFA_FMLexer::CXFA_FMLexer(const CFX_WideStringC& wsFormCalc,
+                           CXFA_FMErrorInfo* pErrorInfo)
+    : m_ptr(wsFormCalc.GetPtr()), m_uCurrentLine(1), m_pErrorInfo(pErrorInfo) {}
+
+CXFA_FMToken* CXFA_FMLexer::NextToken() {
+  m_pToken.reset(Scan());
+  return m_pToken.get();
+}
+
+CXFA_FMToken* CXFA_FMLexer::Scan() {
+  uint16_t ch = 0;
+  CXFA_FMToken* p = new CXFA_FMToken(m_uCurrentLine);
+  if (!XFA_FMDChar::isAvalid(m_ptr)) {
+    ch = XFA_FMDChar::get(m_ptr);
+    Error(FMERR_UNSUPPORTED_CHAR, ch);
+    return p;
+  }
+  int iRet = 0;
+  while (1) {
+    if (!XFA_FMDChar::isAvalid(m_ptr)) {
+      ch = XFA_FMDChar::get(m_ptr);
+      Error(FMERR_UNSUPPORTED_CHAR, ch);
+      return p;
+    }
+    ch = XFA_FMDChar::get(m_ptr);
+    switch (ch) {
+      case 0:
+        p->m_type = TOKeof;
+        return p;
+      case 0x0A:
+        ++m_uCurrentLine;
+        p->m_uLinenum = m_uCurrentLine;
+        XFA_FMDChar::inc(m_ptr);
+        break;
+      case 0x0D:
+        XFA_FMDChar::inc(m_ptr);
+        break;
+      case ';': {
+        const FX_WCHAR* pTemp = 0;
+        Comment(m_ptr, pTemp);
+        m_ptr = pTemp;
+      } break;
+      case '"': {
+        const FX_WCHAR* pTemp = 0;
+        p->m_type = TOKstring;
+        iRet = String(p, m_ptr, pTemp);
+        m_ptr = pTemp;
+      }
+        return p;
+      case '0':
+      case '1':
+      case '2':
+      case '3':
+      case '4':
+      case '5':
+      case '6':
+      case '7':
+      case '8':
+      case '9': {
+        p->m_type = TOKnumber;
+        const FX_WCHAR* pTemp = 0;
+        iRet = Number(p, m_ptr, pTemp);
+        m_ptr = pTemp;
+        if (iRet) {
+          Error(FMERR_BAD_SUFFIX_NUMBER);
+          return p;
+        }
+      }
+        return p;
+      case '=':
+        XFA_FMDChar::inc(m_ptr);
+        if (XFA_FMDChar::isAvalid(m_ptr)) {
+          ch = XFA_FMDChar::get(m_ptr);
+          if (ch == '=') {
+            p->m_type = TOKeq;
+            XFA_FMDChar::inc(m_ptr);
+            return p;
+          } else {
+            p->m_type = TOKassign;
+            return p;
+          }
+        } else {
+          ch = XFA_FMDChar::get(m_ptr);
+          Error(FMERR_UNSUPPORTED_CHAR, ch);
+          return p;
+        }
+        break;
+      case '<':
+        XFA_FMDChar::inc(m_ptr);
+        if (XFA_FMDChar::isAvalid(m_ptr)) {
+          ch = XFA_FMDChar::get(m_ptr);
+          if (ch == '=') {
+            p->m_type = TOKle;
+            XFA_FMDChar::inc(m_ptr);
+            return p;
+          } else if (ch == '>') {
+            p->m_type = TOKne;
+            XFA_FMDChar::inc(m_ptr);
+            return p;
+          } else {
+            p->m_type = TOKlt;
+            return p;
+          }
+        } else {
+          ch = XFA_FMDChar::get(m_ptr);
+          Error(FMERR_UNSUPPORTED_CHAR, ch);
+          return p;
+        }
+        break;
+      case '>':
+        XFA_FMDChar::inc(m_ptr);
+        if (XFA_FMDChar::isAvalid(m_ptr)) {
+          ch = XFA_FMDChar::get(m_ptr);
+          if (ch == '=') {
+            p->m_type = TOKge;
+            XFA_FMDChar::inc(m_ptr);
+            return p;
+          } else {
+            p->m_type = TOKgt;
+            return p;
+          }
+        } else {
+          ch = XFA_FMDChar::get(m_ptr);
+          Error(FMERR_UNSUPPORTED_CHAR, ch);
+          return p;
+        }
+        break;
+      case ',':
+        p->m_type = TOKcomma;
+        XFA_FMDChar::inc(m_ptr);
+        return p;
+      case '(':
+        p->m_type = TOKlparen;
+        XFA_FMDChar::inc(m_ptr);
+        return p;
+      case ')':
+        p->m_type = TOKrparen;
+        XFA_FMDChar::inc(m_ptr);
+        return p;
+      case '[':
+        p->m_type = TOKlbracket;
+        XFA_FMDChar::inc(m_ptr);
+        return p;
+      case ']':
+        p->m_type = TOKrbracket;
+        XFA_FMDChar::inc(m_ptr);
+        return p;
+      case '&':
+        XFA_FMDChar::inc(m_ptr);
+        p->m_type = TOKand;
+        return p;
+      case '|':
+        XFA_FMDChar::inc(m_ptr);
+        p->m_type = TOKor;
+        return p;
+      case '+':
+        XFA_FMDChar::inc(m_ptr);
+        p->m_type = TOKplus;
+        return p;
+      case '-':
+        XFA_FMDChar::inc(m_ptr);
+        p->m_type = TOKminus;
+        return p;
+      case '*':
+        XFA_FMDChar::inc(m_ptr);
+        p->m_type = TOKmul;
+        return p;
+      case '/':
+        XFA_FMDChar::inc(m_ptr);
+        if (XFA_FMDChar::isAvalid(m_ptr)) {
+          ch = XFA_FMDChar::get(m_ptr);
+          if (ch == '/') {
+            const FX_WCHAR* pTemp = 0;
+            Comment(m_ptr, pTemp);
+            m_ptr = pTemp;
+            break;
+          } else {
+            p->m_type = TOKdiv;
+            return p;
+          }
+        } else {
+          ch = XFA_FMDChar::get(m_ptr);
+          Error(FMERR_UNSUPPORTED_CHAR, ch);
+          return p;
+        }
+        break;
+      case '.':
+        XFA_FMDChar::inc(m_ptr);
+        if (XFA_FMDChar::isAvalid(m_ptr)) {
+          ch = XFA_FMDChar::get(m_ptr);
+          if (ch == '.') {
+            p->m_type = TOKdotdot;
+            XFA_FMDChar::inc(m_ptr);
+            return p;
+          } else if (ch == '*') {
+            p->m_type = TOKdotstar;
+            XFA_FMDChar::inc(m_ptr);
+            return p;
+          } else if (ch == '#') {
+            p->m_type = TOKdotscream;
+            XFA_FMDChar::inc(m_ptr);
+            return p;
+          } else if (ch <= '9' && ch >= '0') {
+            p->m_type = TOKnumber;
+            const FX_WCHAR* pTemp = 0;
+            XFA_FMDChar::dec(m_ptr);
+            iRet = Number(p, m_ptr, pTemp);
+            m_ptr = pTemp;
+            if (iRet) {
+              Error(FMERR_BAD_SUFFIX_NUMBER);
+            }
+            return p;
+          } else {
+            p->m_type = TOKdot;
+            return p;
+          }
+        } else {
+          ch = XFA_FMDChar::get(m_ptr);
+          Error(FMERR_UNSUPPORTED_CHAR, ch);
+          return p;
+        }
+      case 0x09:
+      case 0x0B:
+      case 0x0C:
+      case 0x20:
+        XFA_FMDChar::inc(m_ptr);
+        break;
+      default: {
+        const FX_WCHAR* pTemp = 0;
+        iRet = Identifiers(p, m_ptr, pTemp);
+        m_ptr = pTemp;
+        if (iRet) {
+          return p;
+        }
+        p->m_type = IsKeyword(p->m_wstring);
+      }
+        return p;
+    }
+  }
+}
+
+FX_DWORD CXFA_FMLexer::Number(CXFA_FMToken* t,
+                              const FX_WCHAR* p,
+                              const FX_WCHAR*& pEnd) {
+  FX_DOUBLE number = 0;
+  if (XFA_FMDChar::string2number(p, &number, pEnd)) {
+    return 1;
+  }
+  if (pEnd && XFA_FMDChar::isAlpha(pEnd)) {
+    return 1;
+  }
+  t->m_wstring = CFX_WideStringC(p, (pEnd - p));
+  return 0;
+}
+
+FX_DWORD CXFA_FMLexer::String(CXFA_FMToken* t,
+                              const FX_WCHAR* p,
+                              const FX_WCHAR*& pEnd) {
+  const FX_WCHAR* pStart = p;
+  uint16_t ch = 0;
+  XFA_FMDChar::inc(p);
+  ch = XFA_FMDChar::get(p);
+  while (ch) {
+    if (!XFA_FMDChar::isAvalid(p)) {
+      ch = XFA_FMDChar::get(p);
+      pEnd = p;
+      t->m_wstring = CFX_WideStringC(pStart, (pEnd - pStart));
+      Error(FMERR_UNSUPPORTED_CHAR, ch);
+      return 1;
+    }
+    if (ch == '"') {
+      XFA_FMDChar::inc(p);
+      if (!XFA_FMDChar::isAvalid(p)) {
+        ch = XFA_FMDChar::get(p);
+        pEnd = p;
+        t->m_wstring = CFX_WideStringC(pStart, (pEnd - pStart));
+        Error(FMERR_UNSUPPORTED_CHAR, ch);
+        return 1;
+      }
+      ch = XFA_FMDChar::get(p);
+      if (ch == '"') {
+        goto NEXT;
+      } else {
+        break;
+      }
+    }
+  NEXT:
+    XFA_FMDChar::inc(p);
+    ch = XFA_FMDChar::get(p);
+  }
+  pEnd = p;
+  t->m_wstring = CFX_WideStringC(pStart, (pEnd - pStart));
+  return 0;
+}
+
+FX_DWORD CXFA_FMLexer::Identifiers(CXFA_FMToken* t,
+                                   const FX_WCHAR* p,
+                                   const FX_WCHAR*& pEnd) {
+  const FX_WCHAR* pStart = p;
+  uint16_t ch = 0;
+  ch = XFA_FMDChar::get(p);
+  XFA_FMDChar::inc(p);
+  if (!XFA_FMDChar::isAvalid(p)) {
+    pEnd = p;
+    t->m_wstring = CFX_WideStringC(pStart, (pEnd - pStart));
+    Error(FMERR_UNSUPPORTED_CHAR, ch);
+    return 1;
+  }
+  ch = XFA_FMDChar::get(p);
+  while (ch) {
+    if (!XFA_FMDChar::isAvalid(p)) {
+      pEnd = p;
+      t->m_wstring = CFX_WideStringC(pStart, (pEnd - pStart));
+      Error(FMERR_UNSUPPORTED_CHAR, ch);
+      return 1;
+    }
+    ch = XFA_FMDChar::get(p);
+    if (XFA_FMDChar::isUnicodeAlpha(ch)) {
+      XFA_FMDChar::inc(p);
+    } else {
+      pEnd = p;
+      t->m_wstring = CFX_WideStringC(pStart, (pEnd - pStart));
+      return 0;
+    }
+  }
+  pEnd = p;
+  t->m_wstring = CFX_WideStringC(pStart, (pEnd - pStart));
+  return 0;
+}
+
+void CXFA_FMLexer::Comment(const FX_WCHAR* p, const FX_WCHAR*& pEnd) {
+  unsigned ch = 0;
+  XFA_FMDChar::inc(p);
+  ch = XFA_FMDChar::get(p);
+  while (ch) {
+    if (ch == 0x0D) {
+      XFA_FMDChar::inc(p);
+      pEnd = p;
+      return;
+    }
+    if (ch == 0x0A) {
+      ++m_uCurrentLine;
+      XFA_FMDChar::inc(p);
+      pEnd = p;
+      return;
+    }
+    XFA_FMDChar::inc(p);
+    ch = XFA_FMDChar::get(p);
+  }
+  pEnd = p;
+}
+
+XFA_FM_TOKEN CXFA_FMLexer::IsKeyword(const CFX_WideStringC& str) {
+  int32_t iLength = str.GetLength();
+  uint32_t uHash = FX_HashCode_String_GetW(str.GetPtr(), iLength, TRUE);
+  int32_t iStart = KEYWORD_START, iEnd = KEYWORD_END;
+  int32_t iMid = (iStart + iEnd) / 2;
+  XFA_FMKeyword keyword;
+  do {
+    iMid = (iStart + iEnd) / 2;
+    keyword = keyWords[iMid];
+    if (uHash == keyword.m_uHash) {
+      return keyword.m_type;
+    } else if (uHash < keyword.m_uHash) {
+      iEnd = iMid - 1;
+    } else {
+      iStart = iMid + 1;
+    }
+  } while (iStart <= iEnd);
+  return TOKidentifier;
+}
+
+void CXFA_FMLexer::Error(XFA_FM_ERRMSG msg, ...) {
+  m_pErrorInfo->linenum = m_uCurrentLine;
+  const FX_WCHAR* lpMessageInfo = XFA_FM_ErrorMsg(msg);
+  va_list ap;
+  va_start(ap, msg);
+  m_pErrorInfo->message.FormatV(lpMessageInfo, ap);
+  va_end(ap);
+}
+
+FX_BOOL CXFA_FMLexer::HasError() const {
+  if (m_pErrorInfo->message.IsEmpty()) {
+    return FALSE;
+  }
+  return TRUE;
+}