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path: root/xfa/fxfa/parser/cxfa_layoutpagemgr.cpp
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2018-02-14Cleanup CXFA_Node::SetFlagDan Sinclair
The SetFlag method has a signature of (flag, bool) which, looking at the callsites makes you think it will set the flag to the boolean. This isn't what happens, the flag is always set to true and the boolean decides if we execute some notification code. This CL splits SetFlag into SetFlag(flag) and SetFlagAndNotify(flag) to make it a lot clearer what is happening. Change-Id: I3e067c87532cce10b94bda10cc88feb62b948eb0 Reviewed-on: https://pdfium-review.googlesource.com/26750 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-02-14Cleanup CXFA_Document const-nessDan Sinclair
This CL marks methods const where possible and removes redundant methods from CXFA_Document. Change-Id: I34804425469dfd52469daba68f64a4b511e5d4d0 Reviewed-on: https://pdfium-review.googlesource.com/26730 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-01-31Create CXFA_Node::PresenceRequiresSpaceDan Sinclair
This CL replaces XFA_ItemLayoutProcessor_IsTakingSpace with a PresenceRequiresSpace call on CXFA_Node. Change-Id: Ibf570f25eeb3404d72e87cb62e06a7ad70f0916f Reviewed-on: https://pdfium-review.googlesource.com/24850 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-01-17Do more forward declarations in cxfa_node.h.Lei Zhang
Including cjx_node.h pulls in v8 headers for many XFA files. Change-Id: I80a32d0a56b8de5787db5275db48c568da6d0144 Reviewed-on: https://pdfium-review.googlesource.com/22890 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-01-10Rename GetTemplateNode to GetTemplateNodeIfExistsDan Sinclair
This CL makes it explicit that GetTemplateNodeIfExists can return nullptr. Various call sites are updated as needed. Change-Id: If6edd5962b59e7e4ce3dbe9bbdc957783cf76abe Reviewed-on: https://pdfium-review.googlesource.com/22678 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-01-10Verify GetOrCreate results are checkedDan Sinclair
This CL updates users of the GetOrCreate* methods to verify that the value returned is not null before accessing. Change-Id: I4a9fd29a26d5e4ec792ca3671c9868828e53d46e Reviewed-on: https://pdfium-review.googlesource.com/22652 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-01-10Remove 2 param CXFA_Node::GetNodeItemDan Sinclair
This CL removes the CXFA_Node::GetNodeItem(kind, object_type) method in favour of explicit methods. All of the callers passed in a XFA_ObjectType::ContainerNode. Change-Id: I713184d3fa188a122284f50ac2a6b0fd3d7aed26 Reviewed-on: https://pdfium-review.googlesource.com/22651 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-01-10Remove CXFA_Node::GetNodeItemDan Sinclair
This CL removes the generic CXFA_Node::GetNodeItem(type) method for specific calls to get the parent, child or siblings. Change-Id: Ief68284ac7b954aaa4ed7120dd82a39f8b52656a Reviewed-on: https://pdfium-review.googlesource.com/22650 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-01-10Make methods which create nodes more obviousDan Sinclair
This CL converts the various methods Get methods which take a boolean value to explicit Get* and GetOrCreate* methods to make the usage clearer. Change-Id: I2af68448b1b69b95713e739bf7fe14a4336d2b65 Reviewed-on: https://pdfium-review.googlesource.com/22590 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-01-08Differentiate the type of LayoutItem to createDan Sinclair
This CL splits CXFA_FFNotify::OnCreateLayoutItem into a Content and Container variant. This removes the need for casting at the two call sites. Change-Id: Ic19bf4398f0ea32099c270f3bb585a18004ccb5d Reviewed-on: https://pdfium-review.googlesource.com/22412 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-01-04Convert usages of pdfium::Optional to OptionalRyan Harrison
Change-Id: I29769f78eaad10c6a8b79e27524336c4f330377e Reviewed-on: https://pdfium-review.googlesource.com/22258 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-12-14Add type information to CJX_Object::GetPropertyDan Sinclair
This CL adds a type template to the CJX_Object::GetProperty method so we can have the correct types returned. Change-Id: Ieda8ec4bd31d26a1e71af30f08b48eb826f5993d Reviewed-on: https://pdfium-review.googlesource.com/21250 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-12-14Add types to the CXFA_Node::Get*{Child|Sibling}* methodsDan Sinclair
This CL templates the various Get methods in CXFA_Node in order to return the correct node type. Change-Id: I4f50df6dd9213873deb8f8f262eaf579c6c4ca7d Reviewed-on: https://pdfium-review.googlesource.com/21230 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-12-14Change CXFA_Node::GetChild to return proper typesDan Sinclair
Currently CXFA_Node::GetChild always returns a CXFA_Node* object. We know the type we want when we call GetChild, so this CL changes the code to add a template parameter to GetChild and return the correct CXFA_Node subtype for the desired element. Change-Id: I5aecf2e840504235dc246483abee48e0564841fe Reviewed-on: https://pdfium-review.googlesource.com/21210 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-12-14Fold CXFA_ScriptData into CXFA_ScriptDan Sinclair
This CL removes the CXFA_ScriptData wrapper and uses CXFA_Script directly. Change-Id: I1f1932ef96ee4a24407de7eb1d68b8631a5a67ea Reviewed-on: https://pdfium-review.googlesource.com/21173 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-12-13Methods are on CJX_Object not CJX_Node nowDan Sinclair
This CL converts all of the JSNode() to JSObject() calls as all of the original CJX_Node methods have been moved to CJX_Object. This fixes potential bad casts from things like CJX_Content which do not inhert from CJX_Node. Bug: pdfium:793372 Change-Id: I6c7f63a78f3d47bb6bad74faed3fd8c535bf095e Reviewed-on: https://pdfium-review.googlesource.com/21090 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-12-07[xfa] Move JS method information to files.chromium/3288Dan Sinclair
This CL moves the XFA SOM JS Method information out of the c-array and into individual CJX class files. Change-Id: I401046a06aacaf1f04e5a51eb899e479de012e15 Reviewed-on: https://pdfium-review.googlesource.com/20450 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-12-04Cleanup ResolveObjects params and returnDan Sinclair
The return value of ResolveObjects is always used as a boolean, so change from int32_t. The XFA_RESOLVENODE_RS object was made a pointer from a ref. Change-Id: I030036c01101680e36f4ddf524b468354a2e6850 Reviewed-on: https://pdfium-review.googlesource.com/20331 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-12-01Get rid of else after break/continue/return.chromium/3284chromium/3283Lei Zhang
Change-Id: I3efc57cd7325d16e3ca8ebdeeaec06012b2c56e3 Reviewed-on: https://pdfium-review.googlesource.com/20110 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-11-30Rename XFA_ATTRIBUTEENUM to XFA_AttributeEnum enum classDan Sinclair
This CL changes the enum XFA_ATTRIBUTEENUM to an enum class XFA_AttributeEnum. Methods expecting an int32 have been updated to take or return the XFA_AttrbuteEnum type. Change-Id: I268453949545fe2dd3eae707be4d9cc7edeff763 Reviewed-on: https://pdfium-review.googlesource.com/20070 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-30A CXFA_Node can only be in one packetDan Sinclair
When a CXFA_Node is created it's created as part of a specific packet. Previously the code would accept an XFA_XDPPACKET which was stored internally. This had the potential to allow a node to exist in multiple packets. This CL changes the XFA_XDPPacket to the XFA_PacketType enum class and cleans up a lot of uses to use the more specific packet type. Change-Id: I7fc8c843bfa6bd32295ae58a26bcec311e43c4b0 Reviewed-on: https://pdfium-review.googlesource.com/20012 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-30Generate XFA node attribute informationDan Sinclair
This CL moves the attribute information out of the xfa basic data array and stores in the generated nodes. Change-Id: Id8e280324bf0f75a1da9c937c2734d161324242d Reviewed-on: https://pdfium-review.googlesource.com/19271 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-11-21Add {Byte/Wide}String::Trim().Lei Zhang
So callers no longer have to call str.TrimLeft(); str.TrimRight(); Change-Id: If931eaa8d891f487b9618ebbeee5ee294e807846 Reviewed-on: https://pdfium-review.googlesource.com/18990 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-11-20Convert calc data and layout item to store in CJX_NodeDan Sinclair
This CL moves the XFA_CalcData and XFA_LayoutItem out of the map'd data for a CJX_Node and stores directly on the node. This makes the object a bit bigger but makes the code a lot more understandable. Change-Id: I8897a52d61d37595181960c23928984aa5d67efc Reviewed-on: https://pdfium-review.googlesource.com/18590 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-20Remove {Set|Get|Try}Object methodsDan Sinclair
The CJX_Node::{Set|Get|Try}Object methods are used to set CXFA_WidgetData and CXFA_Node objects into the CJX_Node. This is stored in the node as void* data and custom delete methods are passed when needed. Instead, this CL just stores the two types of things we need on the CJX_Node and returns the correct types. This uses a bit more space on the CJX_Node, but it makes the code a lot clearer and simpler. Change-Id: I8546ea6456a1c1f5f8b602a6a420a0e85f3fac29 Reviewed-on: https://pdfium-review.googlesource.com/18570 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-16Convert TryEnum to return an optionalDan Sinclair
This CL converts CJX_Node::TryEnum to return a pdfium::Optional instead of a bool with an out parameter. Change-Id: Icc1b063ce51656cc5e467aba358eb9e7d6754fea Reviewed-on: https://pdfium-review.googlesource.com/18512 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-16Convert TryInteger to return an optionalDan Sinclair
This Cl changes CJX_Node::TryInteger to return a pdfium::Optional<int32_t> instead of a boolean with an out param. Change-Id: I4675e08d3b132041f7d87e4639efa1d555089dc2 Reviewed-on: https://pdfium-review.googlesource.com/18511 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-16Convert TryCData and TryContent to optionalsDan Sinclair
This CL changes the TryCData and TryContent to return pdfium::Optional<WideString> values instead of returning a bool and taking an out WideString. Change-Id: I9c9d877803f9f1977191e12d6a907c29784c10b2 Reviewed-on: https://pdfium-review.googlesource.com/18510 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-14Move code out of xfa_utilschromium/3271chromium/3270chromium/3269Dan Sinclair
This CL splits the node template out of xfa_utils into its own file. The XFA_ByteStringToDouble method was moved to the only calling file. Change-Id: I85fb2dfa3afc4a675ec69574e32d643c0dca731f Reviewed-on: https://pdfium-review.googlesource.com/18490 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-14Cleanup XFA default value codeDan Sinclair
This CL adds helper methods to CXFA_Node to retrieve the default values for attributes with the correct data types. Change-Id: I644435b4b430819f1060a95fa4fffe4ba2826cfe Reviewed-on: https://pdfium-review.googlesource.com/18450 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-08Convert XFA_UNIT to an enum classDan Sinclair
This CL converts the XFA_UNIT enum to the XFA_Unit enum class. Change-Id: I6e0588f265e45b863ff1ecc170279f558fb6bd67 Reviewed-on: https://pdfium-review.googlesource.com/18090 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-08Convert XFA_ATTRIBUTE to an enum classDan Sinclair
This CL converts the XFA_ATTRIBUTE enum to an enum class and fixes up various usages. Change-Id: I3dd17cc412d97eb212a65ce63bb9fa19605e1e91 Reviewed-on: https://pdfium-review.googlesource.com/18050 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-04Remove default params for CXFA_Node::{Insert|Remove}ChildDan Sinclair
This CL removes the default values and inlines in the call sites as needed. Change-Id: I68925d57b6230400429421ce728dd5524e5fc9a1 Reviewed-on: https://pdfium-review.googlesource.com/17710 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-04Remove default values from CXFA_Node::{CountChildren|GetChild}chromium/3259Dan Sinclair
This CL removes the default values and inlines into the call sites as needed. Change-Id: I554e9d5ac781003695f90522f9c6c3160653eb59 Reviewed-on: https://pdfium-review.googlesource.com/17572 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-02Remove default values from Set{UserData|Object} and GetUserData.Dan Sinclair
This CL removes the default values and inlines at the call sites. Change-Id: I47ff04a01c30af89949e9c8dd5d51f7ffaef1f98 Reviewed-on: https://pdfium-review.googlesource.com/17610 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-02Remove default value from CJX_Node::{Set|Try}MeasureDan Sinclair
This CL removes the default values from {Set|Try}Measure and inlines into the call sites. Change-Id: I2356b92d419203cc1cdbea865b6e04b728430f5a Reviewed-on: https://pdfium-review.googlesource.com/17551 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-02Remove default values from CJX_Node::{Set|Try}EnumDan Sinclair
This CL removes the default value and inlines into the call sites. Change-Id: Ib6bc2b27189be3596e83a8b29b7a6a744278ed34 Reviewed-on: https://pdfium-review.googlesource.com/17570 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-02Remove default values from CJX_Node::TryContentDan Sinclair
This CL removes the default values from TryContent and inlines into the call sites. Change-Id: I2d3f41f77364a0b923931479a60e07eae98dd5a9 Reviewed-on: https://pdfium-review.googlesource.com/17550 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-02Cleanup params to CJX_Node::TryCDataDan Sinclair
This CL removes the bProto param as it was never set and inlines the value where needed in the methods. The default value was removed from bUseDefault and inlined into callsites as needed. Change-Id: I773261d19aa3799bc607e7df482b5f5e5217bee6 Reviewed-on: https://pdfium-review.googlesource.com/17533 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-02Remove default value from CJX_Node::GetPropertyDan Sinclair
This CL removes the GetProperty default value and inlines into the callers. Change-Id: I0e18f27b51046fdf37ddc57f34a31154729c8db0 Reviewed-on: https://pdfium-review.googlesource.com/17510 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-11-01Split JS code out of CXFA_Node.Dan Sinclair
This CL moves JS code out of CXFA_Node and places it into fxjs/cjx_node. The CXFA_Node then has a CJX_Node as a member and, currently, proxies JS calls to the CJX_Node member. Change-Id: Ic5b95184c8fd2347f0bdcfbccfa89bb6b52835b6 Reviewed-on: https://pdfium-review.googlesource.com/17290 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-11-01Move some XFA JS code into fxjs/Dan Sinclair
This CL renames cxfa_scriptcontext to cfxjse_engine and cxfa_fm2jscontext to cfxjse_formcalc_context. From reading the code, the script context appears to handle the v8 setup and object code. The formcalc context code is related to handling the JS code generated from the transpiler. I, think, these new names make the intended usage clearer. They also move the code into fxjs/ to keep along side the rest of the JS code. Change-Id: I50619fbe48ca1f553a44cf0e0cb0210be8e45e4f Reviewed-on: https://pdfium-review.googlesource.com/17130 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-27Remove FX_STRSIZE and replace with size_tRyan Harrison
BUG=pdfium:828 Change-Id: I5c40237433ebabaeabdb43aec9cdf783e41dfe16 Reviewed-on: https://pdfium-review.googlesource.com/13230 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-18Convert string class namesRyan Harrison
Automated using git grep & sed. Replace StringC classes with StringView classes. Remove the CFX_ prefix and put string classes in fxcrt namespace. Change AsStringC() to AsStringView(). Rename tests from TEST(fxcrt, *String*Foo) to TEST(*String*, Foo). Couple of tests needed to have their names regularlized. BUG=pdfium:894 Change-Id: I7ca038685c8d803795f3ed02545124f7a224c83d Reviewed-on: https://pdfium-review.googlesource.com/14151 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-01Cleanup usages of Mid(foo, 1), Right(1), and Left(1)chromium/3203Ryan Harrison
Mid(foo, 1) is equivalent to [foo], if all you want is the character. Similarly Left(1) is [0]. It is faster also, since it does not need to create intermediate strings. Right(1) is a touch more tricky, since it requires something like GetLength() ? [GetLength() - 1] : 0;. A new method, Last() has been added to perform this character extraction. Multiple call sites have been updated to use more efficient/simpler syntax. There are a number of call sites that use on these patterns, but based on the surrounding context we actually need/want a string, so they have not been modified. Change-Id: I485a7f9c7b34c9bdacecada610158f996816afdd Reviewed-on: https://pdfium-review.googlesource.com/12890 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-23Convert string Find methods to return an OptionalRyan Harrison
The Find and ReverseFind methods for WideString, WideStringC, ByteString, and ByteStringC have been converted from returning a raw FX_STRSIZE, to returning Optional<FX_STRSIZE>, so that success/failure can be indicated without using FX_STRNPOS. This allows for removing FX_STRNPOS and by association makes the conversion of FX_STRSIZE to size_t easier, since it forces checking the return value of Find to be explictly done as well as taking the error value out of the range of FX_STRSIZE. New Contains methods have been added for cases where the success or failure is all the call site to Find cared about, and the actual position was ignored. BUG=pdfium:828 Change-Id: Id827e508c8660affa68cc08a13d96121369364b7 Reviewed-on: https://pdfium-review.googlesource.com/11350 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-15Remove GetAt from string classesRyan Harrison
This method duplicates the behaviour of the const [] operator and doesn't offer any additional safety. Folding them into one implementation. SetAt is retained, since implementing the non-const [] operator to replace SetAt has potential performance concerns. Specifically many non-obvious cases of reading an element using [] will cause a realloc & copy. BUG=pdfium:860 Change-Id: I3ef5e5e5a15376f040256b646eb0d90636e24b67 Reviewed-on: https://pdfium-review.googlesource.com/10870 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-01Replace raw value for constant error value in string operationsRyan Harrison
Currently Find() and other methods that return a FX_STRSIZE return -1 to indicate error/failure. This means that there is a lot of magic numbers and magic checks floating around. The standard library for similar operations uses a npos constant. This CL implements FX_STRNPOS, and replaces usages of magic number checking. It also does some type cleanup along the way where it was obvious that FX_STRSIZE should be being used. Removing the magic numbers should make eventually changing FX_STRSIZE to be unsigned easier in the future. BUG=pdfium:828 Change-Id: I67e481e44cf2f75a1698afa8fbee4f375a74c490 Reviewed-on: https://pdfium-review.googlesource.com/9651 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-28Convert calls to Mid() to Left() or Right() if possibleRyan Harrison
The various string/byte classes support Mid(), Left(), and Right() for extracting substrings. Mid() can handle all possible cases, but Left() and Right() are useful for common cases and more explicit about what is going on. Calls like Mid(offset, length - offset) can be converted to Right(length - offset). Calls like Mid(0, length) can be converted to Left(length). If the substring being extracted does not extend all the way to one of the edges of the string, then Mid() still needs to be used. BUG=pdfium:828 Change-Id: I2ec46ad3d71aac0f7b513e103c69cbe8c854cf62 Reviewed-on: https://pdfium-review.googlesource.com/9510 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-27Remove single param Mid() method from string classesRyan Harrison
This support is being removed from CFX_ByteString, CFX_ByteStringC, CFX_WideString, and CFX_WideStringC. This standardizes all of these classes to only have one Mid method that takes in 2 params, offset and count. Count now must be positive. The old behaviour of calculating the length for the user if -1 is passed in for the count has been removed. This work is in preperation for converting these classes to not accept negative lengths anywhere and thus make the underlying size type unsigned. BUG=pdfium:828 Change-Id: I5f15e7b7b00b264231817f143e2da88ee6f69e7b Reviewed-on: https://pdfium-review.googlesource.com/9430 Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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