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Issue72customdtoa #97

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merged 5 commits into from
Aug 11, 2014
Merged

Issue72customdtoa #97

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6978778
Change double parsing with fast-path conversion
miloyip Aug 9, 2014
a7762a3
Custom dtoa() impleemntation
miloyip Aug 9, 2014
0d91564
Fixed gcc effc++ warning in dtoa.h
miloyip Aug 9, 2014
1900b7b
Remove double precision settings API in Writer
miloyip Aug 9, 2014
c549152
Change CountDecimalDigit32() to simple implementation
miloyip Aug 10, 2014
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16 changes: 1 addition & 15 deletions doc/sax.md
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Expand Up @@ -225,7 +225,7 @@ You may doubt that, why not just using `sprintf()` or `std::stringstream` to bui
There are various reasons:
1. `Writer` must output a well-formed JSON. If there is incorrect event sequence (e.g. `Int()` just after `StartObject()`), it generates assertion fail in debug mode.
2. `Writer::String()` can handle string escaping (e.g. converting code point `U+000A` to `\n`) and Unicode transcoding.
3. `Writer` handles number output consistently. For example, user can set precision for `Double()`.
3. `Writer` handles number output consistently.
4. `Writer` implements the event handler concept. It can be used to handle events from `Reader`, `Document` or other event publisher.
5. `Writer` can be optimized for different platforms.

Expand Down Expand Up @@ -258,20 +258,6 @@ The last one, `Allocator` is the type of allocator, which is used for allocating

Besides, the constructor of `Writer` has a `levelDepth` parameter. This parameter affects the initial memory allocated for storing information per hierarchy level.

## Precision (#WriterPrecision)

When using `Double()`, the precision of output can be specified, for example:

~~~~~~~~~~cpp
writer.SetDoublePrecision(4);
writer.StartArary();
writer.Double(3.14159265359);
writer.EndArray();
~~~~~~~~~~
~~~~~~~~~~
[3.1416]
~~~~~~~~~~

## PrettyWriter {#PrettyWriter}

While the output of `Writer` is the most condensed JSON without white-spaces, suitable for network transfer or storage, it is not easily readable by human.
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