--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uriparser/src/UriRecompose.c	Fri Jul 13 10:50:43 2018 +0200
@@ -0,0 +1,577 @@
+/*
+ * uriparser - RFC 3986 URI parsing library
+ *
+ * Copyright (C) 2007, Weijia Song <songweijia@gmail.com>
+ * Copyright (C) 2007, Sebastian Pipping <sebastian@pipping.org>
+ * All rights reserved.
+ *
+ * Redistribution  and use in source and binary forms, with or without
+ * modification,  are permitted provided that the following conditions
+ * are met:
+ *
+ *     * Redistributions   of  source  code  must  retain  the   above
+ *       copyright  notice, this list of conditions and the  following
+ *       disclaimer.
+ *
+ *     * Redistributions  in  binary  form must  reproduce  the  above
+ *       copyright  notice, this list of conditions and the  following
+ *       disclaimer   in  the  documentation  and/or  other  materials
+ *       provided with the distribution.
+ *
+ *     * Neither  the name of the <ORGANIZATION> nor the names of  its
+ *       contributors  may  be  used to endorse  or  promote  products
+ *       derived  from  this software without specific  prior  written
+ *       permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT  NOT
+ * LIMITED  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND  FITNESS
+ * FOR  A  PARTICULAR  PURPOSE ARE DISCLAIMED. IN NO EVENT  SHALL  THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL,    SPECIAL,   EXEMPLARY,   OR   CONSEQUENTIAL   DAMAGES
+ * (INCLUDING,  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES;  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT  LIABILITY,  OR  TORT (INCLUDING  NEGLIGENCE  OR  OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* What encodings are enabled? */
+#include <uriparser/UriDefsConfig.h>
+#if (!defined(URI_PASS_ANSI) && !defined(URI_PASS_UNICODE))
+/* Include SELF twice */
+# ifdef URI_ENABLE_ANSI
+#  define URI_PASS_ANSI 1
+#  include "UriRecompose.c"
+#  undef URI_PASS_ANSI
+# endif
+# ifdef URI_ENABLE_UNICODE
+#  define URI_PASS_UNICODE 1
+#  include "UriRecompose.c"
+#  undef URI_PASS_UNICODE
+# endif
+#else
+# ifdef URI_PASS_ANSI
+#  include <uriparser/UriDefsAnsi.h>
+# else
+#  include <uriparser/UriDefsUnicode.h>
+#  include <wchar.h>
+# endif
+
+
+
+#ifndef URI_DOXYGEN
+# include <uriparser/Uri.h>
+# include "UriCommon.h"
+#endif
+
+
+
+static int URI_FUNC(ToStringEngine)(URI_CHAR * dest, const URI_TYPE(Uri) * uri,
+		int maxChars, int * charsWritten, int * charsRequired);
+
+
+
+int URI_FUNC(ToStringCharsRequired)(const URI_TYPE(Uri) * uri,
+		int * charsRequired) {
+	const int MAX_CHARS = ((unsigned int)-1) >> 1;
+	return URI_FUNC(ToStringEngine)(NULL, uri, MAX_CHARS, NULL, charsRequired);
+}
+
+
+
+int URI_FUNC(ToString)(URI_CHAR * dest, const URI_TYPE(Uri) * uri,
+		int maxChars, int * charsWritten) {
+	return URI_FUNC(ToStringEngine)(dest, uri, maxChars, charsWritten, NULL);
+}
+
+
+
+static URI_INLINE int URI_FUNC(ToStringEngine)(URI_CHAR * dest,
+		const URI_TYPE(Uri) * uri, int maxChars, int * charsWritten,
+		int * charsRequired) {
+	int written = 0;
+	if ((uri == NULL) || ((dest == NULL) && (charsRequired == NULL))) {
+		if (charsWritten != NULL) {
+			*charsWritten = 0;
+		}
+		return URI_ERROR_NULL;
+	}
+
+	if (maxChars < 1) {
+		if (charsWritten != NULL) {
+			*charsWritten = 0;
+		}
+		return URI_ERROR_TOSTRING_TOO_LONG;
+	}
+	maxChars--; /* So we don't have to substract 1 for '\0' all the time */
+
+	/* [01/19]	result = "" */
+				if (dest != NULL) {
+					dest[0] = _UT('\0');
+				} else {
+					(*charsRequired) = 0;
+				}
+	/* [02/19]	if defined(scheme) then */
+				if (uri->scheme.first != NULL) {
+	/* [03/19]		append scheme to result; */
+					const int charsToWrite
+							= (int)(uri->scheme.afterLast - uri->scheme.first);
+					if (dest != NULL) {
+						if (written + charsToWrite <= maxChars) {
+							memcpy(dest + written, uri->scheme.first,
+									charsToWrite * sizeof(URI_CHAR));
+							written += charsToWrite;
+						} else {
+							dest[0] = _UT('\0');
+							if (charsWritten != NULL) {
+								*charsWritten = 0;
+							}
+							return URI_ERROR_TOSTRING_TOO_LONG;
+						}
+					} else {
+						(*charsRequired) += charsToWrite;
+					}
+	/* [04/19]		append ":" to result; */
+					if (dest != NULL) {
+						if (written + 1 <= maxChars) {
+							memcpy(dest + written, _UT(":"),
+									1 * sizeof(URI_CHAR));
+							written += 1;
+						} else {
+							dest[0] = _UT('\0');
+							if (charsWritten != NULL) {
+								*charsWritten = 0;
+							}
+							return URI_ERROR_TOSTRING_TOO_LONG;
+						}
+					} else {
+						(*charsRequired) += 1;
+					}
+	/* [05/19]	endif; */
+				}
+	/* [06/19]	if defined(authority) then */
+				if (URI_FUNC(IsHostSet)(uri)) {
+	/* [07/19]		append "//" to result; */
+					if (dest != NULL) {
+						if (written + 2 <= maxChars) {
+							memcpy(dest + written, _UT("//"),
+									2 * sizeof(URI_CHAR));
+							written += 2;
+						} else {
+							dest[0] = _UT('\0');
+							if (charsWritten != NULL) {
+								*charsWritten = 0;
+							}
+							return URI_ERROR_TOSTRING_TOO_LONG;
+						}
+					} else {
+						(*charsRequired) += 2;
+					}
+	/* [08/19]		append authority to result; */
+					/* UserInfo */
+					if (uri->userInfo.first != NULL) {
+						const int charsToWrite = (int)(uri->userInfo.afterLast - uri->userInfo.first);
+						if (dest != NULL) {
+							if (written + charsToWrite <= maxChars) {
+								memcpy(dest + written, uri->userInfo.first,
+										charsToWrite * sizeof(URI_CHAR));
+								written += charsToWrite;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+
+							if (written + 1 <= maxChars) {
+								memcpy(dest + written, _UT("@"),
+										1 * sizeof(URI_CHAR));
+								written += 1;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += charsToWrite + 1;
+						}
+					}
+
+					/* Host */
+					if (uri->hostData.ip4 != NULL) {
+						/* IPv4 */
+						int i = 0;
+						for (; i < 4; i++) {
+							const unsigned char value = uri->hostData.ip4->data[i];
+							const int charsToWrite = (value > 99) ? 3 : ((value > 9) ? 2 : 1);
+							if (dest != NULL) {
+								if (written + charsToWrite <= maxChars) {
+									URI_CHAR text[4];
+									if (value > 99) {
+										text[0] = _UT('0') + (value / 100);
+										text[1] = _UT('0') + ((value % 100) / 10);
+										text[2] = _UT('0') + (value % 10);
+									} else if (value > 9)  {
+										text[0] = _UT('0') + (value / 10);
+										text[1] = _UT('0') + (value % 10);
+									} else {
+										text[0] = _UT('0') + value;
+									}
+									text[charsToWrite] = _UT('\0');
+									memcpy(dest + written, text, charsToWrite * sizeof(URI_CHAR));
+									written += charsToWrite;
+								} else {
+									dest[0] = _UT('\0');
+									if (charsWritten != NULL) {
+										*charsWritten = 0;
+									}
+									return URI_ERROR_TOSTRING_TOO_LONG;
+								}
+								if (i < 3) {
+									if (written + 1 <= maxChars) {
+										memcpy(dest + written, _UT("."),
+												1 * sizeof(URI_CHAR));
+										written += 1;
+									} else {
+										dest[0] = _UT('\0');
+										if (charsWritten != NULL) {
+											*charsWritten = 0;
+										}
+										return URI_ERROR_TOSTRING_TOO_LONG;
+									}
+								}
+							} else {
+								(*charsRequired) += charsToWrite + 1;
+							}
+						}
+					} else if (uri->hostData.ip6 != NULL) {
+						/* IPv6 */
+						int i = 0;
+						if (dest != NULL) {
+							if (written + 1 <= maxChars) {
+								memcpy(dest + written, _UT("["),
+										1 * sizeof(URI_CHAR));
+								written += 1;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += 1;
+						}
+
+						for (; i < 16; i++) {
+							const unsigned char value = uri->hostData.ip6->data[i];
+							if (dest != NULL) {
+								if (written + 2 <= maxChars) {
+									URI_CHAR text[3];
+									text[0] = URI_FUNC(HexToLetterEx)(value / 16, URI_FALSE);
+									text[1] = URI_FUNC(HexToLetterEx)(value % 16, URI_FALSE);
+									text[2] = _UT('\0');
+									memcpy(dest + written, text, 2 * sizeof(URI_CHAR));
+									written += 2;
+								} else {
+									dest[0] = _UT('\0');
+									if (charsWritten != NULL) {
+										*charsWritten = 0;
+									}
+									return URI_ERROR_TOSTRING_TOO_LONG;
+								}
+							} else {
+								(*charsRequired) += 2;
+							}
+							if (((i & 1) == 1) && (i < 15)) {
+								if (dest != NULL) {
+									if (written + 1 <= maxChars) {
+										memcpy(dest + written, _UT(":"),
+												1 * sizeof(URI_CHAR));
+										written += 1;
+									} else {
+										dest[0] = _UT('\0');
+										if (charsWritten != NULL) {
+											*charsWritten = 0;
+										}
+										return URI_ERROR_TOSTRING_TOO_LONG;
+									}
+								} else {
+									(*charsRequired) += 1;
+								}
+							}
+						}
+
+						if (dest != NULL) {
+							if (written + 1 <= maxChars) {
+								memcpy(dest + written, _UT("]"),
+										1 * sizeof(URI_CHAR));
+								written += 1;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += 1;
+						}
+					} else if (uri->hostData.ipFuture.first != NULL) {
+						/* IPvFuture */
+						const int charsToWrite = (int)(uri->hostData.ipFuture.afterLast
+								- uri->hostData.ipFuture.first);
+						if (dest != NULL) {
+							if (written + 1 <= maxChars) {
+								memcpy(dest + written, _UT("["),
+										1 * sizeof(URI_CHAR));
+								written += 1;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+
+							if (written + charsToWrite <= maxChars) {
+								memcpy(dest + written, uri->hostData.ipFuture.first, charsToWrite * sizeof(URI_CHAR));
+								written += charsToWrite;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+
+							if (written + 1 <= maxChars) {
+								memcpy(dest + written, _UT("]"),
+										1 * sizeof(URI_CHAR));
+								written += 1;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += 1 + charsToWrite + 1;
+						}
+					} else if (uri->hostText.first != NULL) {
+						/* Regname */
+						const int charsToWrite = (int)(uri->hostText.afterLast - uri->hostText.first);
+						if (dest != NULL) {
+							if (written + charsToWrite <= maxChars) {
+								memcpy(dest + written, uri->hostText.first,
+										charsToWrite * sizeof(URI_CHAR));
+								written += charsToWrite;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += charsToWrite;
+						}
+					}
+
+					/* Port */
+					if (uri->portText.first != NULL) {
+						const int charsToWrite = (int)(uri->portText.afterLast - uri->portText.first);
+						if (dest != NULL) {
+							/* Leading ':' */
+							if (written + 1 <= maxChars) {
+									memcpy(dest + written, _UT(":"),
+											1 * sizeof(URI_CHAR));
+									written += 1;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+
+							/* Port number */
+							if (written + charsToWrite <= maxChars) {
+								memcpy(dest + written, uri->portText.first,
+										charsToWrite * sizeof(URI_CHAR));
+								written += charsToWrite;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += 1 + charsToWrite;
+						}
+					}
+	/* [09/19]	endif; */
+				}
+	/* [10/19]	append path to result; */
+				/* Slash needed here? */
+				if (uri->absolutePath || ((uri->pathHead != NULL)
+						&& URI_FUNC(IsHostSet)(uri))) {
+					if (dest != NULL) {
+						if (written + 1 <= maxChars) {
+							memcpy(dest + written, _UT("/"),
+									1 * sizeof(URI_CHAR));
+							written += 1;
+						} else {
+							dest[0] = _UT('\0');
+							if (charsWritten != NULL) {
+								*charsWritten = 0;
+							}
+							return URI_ERROR_TOSTRING_TOO_LONG;
+						}
+					} else {
+						(*charsRequired) += 1;
+					}
+				}
+
+				if (uri->pathHead != NULL) {
+					URI_TYPE(PathSegment) * walker = uri->pathHead;
+					do {
+						const int charsToWrite = (int)(walker->text.afterLast - walker->text.first);
+						if (dest != NULL) {
+							if (written + charsToWrite <= maxChars) {
+								memcpy(dest + written, walker->text.first,
+										charsToWrite * sizeof(URI_CHAR));
+								written += charsToWrite;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += charsToWrite;
+						}
+
+						/* Not last segment -> append slash */
+						if (walker->next != NULL) {
+							if (dest != NULL) {
+								if (written + 1 <= maxChars) {
+									memcpy(dest + written, _UT("/"),
+											1 * sizeof(URI_CHAR));
+									written += 1;
+								} else {
+									dest[0] = _UT('\0');
+									if (charsWritten != NULL) {
+										*charsWritten = 0;
+									}
+									return URI_ERROR_TOSTRING_TOO_LONG;
+								}
+							} else {
+								(*charsRequired) += 1;
+							}
+						}
+
+						walker = walker->next;
+					} while (walker != NULL);
+				}
+	/* [11/19]	if defined(query) then */
+				if (uri->query.first != NULL) {
+	/* [12/19]		append "?" to result; */
+					if (dest != NULL) {
+						if (written + 1 <= maxChars) {
+							memcpy(dest + written, _UT("?"),
+									1 * sizeof(URI_CHAR));
+							written += 1;
+						} else {
+							dest[0] = _UT('\0');
+							if (charsWritten != NULL) {
+								*charsWritten = 0;
+							}
+							return URI_ERROR_TOSTRING_TOO_LONG;
+						}
+					} else {
+						(*charsRequired) += 1;
+					}
+	/* [13/19]		append query to result; */
+					{
+						const int charsToWrite
+								= (int)(uri->query.afterLast - uri->query.first);
+						if (dest != NULL) {
+							if (written + charsToWrite <= maxChars) {
+								memcpy(dest + written, uri->query.first,
+										charsToWrite * sizeof(URI_CHAR));
+								written += charsToWrite;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += charsToWrite;
+						}
+					}
+	/* [14/19]	endif; */
+				}
+	/* [15/19]	if defined(fragment) then */
+				if (uri->fragment.first != NULL) {
+	/* [16/19]		append "#" to result; */
+					if (dest != NULL) {
+						if (written + 1 <= maxChars) {
+							memcpy(dest + written, _UT("#"),
+									1 * sizeof(URI_CHAR));
+							written += 1;
+						} else {
+							dest[0] = _UT('\0');
+							if (charsWritten != NULL) {
+								*charsWritten = 0;
+							}
+							return URI_ERROR_TOSTRING_TOO_LONG;
+						}
+					} else {
+						(*charsRequired) += 1;
+					}
+	/* [17/19]		append fragment to result; */
+					{
+						const int charsToWrite
+								= (int)(uri->fragment.afterLast - uri->fragment.first);
+						if (dest != NULL) {
+							if (written + charsToWrite <= maxChars) {
+								memcpy(dest + written, uri->fragment.first,
+										charsToWrite * sizeof(URI_CHAR));
+								written += charsToWrite;
+							} else {
+								dest[0] = _UT('\0');
+								if (charsWritten != NULL) {
+									*charsWritten = 0;
+								}
+								return URI_ERROR_TOSTRING_TOO_LONG;
+							}
+						} else {
+							(*charsRequired) += charsToWrite;
+						}
+					}
+	/* [18/19]	endif; */
+				}
+	/* [19/19]	return result; */
+				if (dest != NULL) {
+					dest[written++] = _UT('\0');
+					if (charsWritten != NULL) {
+						*charsWritten = written;
+					}
+				}
+				return URI_SUCCESS;
+}
+
+
+
+#endif