Generate docs for Fluid API (#6215)

* add doc config for fluid

* fix typo

* follow comments

doc/api/index_en.rst

@@ -7,3 +7,4 @@ API
     v2/model_configs.rst
     v2/data.rst
     v2/run_logic.rst
+    v2/fluid.rst

doc/api/v2/fluid.rst

+======================
+Fluid
+======================
+
+..  toctree::
+    :maxdepth: 1
+
+    fluid/layers.rst
+    fluid/data_feeder.rst
+    fluid/executor.rst
+    fluid/initializer.rst
+    fluid/evaluator.rst
+    fluid/nets.rst
+    fluid/optimizer.rst
+    fluid/param_attr.rst
+    fluid/profiler.rst
+    fluid/regularizer.rst
+

doc/api/v2/fluid/data_feeder.rst

+===========
+DataFeeder
+===========
+
+DataFeeder
+-----------
+..  automodule:: paddle.v2.fluid.data_feeder
+    :members: DataFeeder
+    :noindex:

doc/api/v2/fluid/evaluator.rst

+===========
+Evaluator
+===========
+
+Evaluator
+-----------
+..  automodule:: paddle.v2.fluid.evaluator
+    :members: Evaluator
+    :noindex:

doc/api/v2/fluid/executor.rst

+===========
+Executor
+===========
+
+Executor
+-----------
+..  automodule:: paddle.v2.fluid.executor
+    :members: Executor
+    :noindex:

doc/api/v2/fluid/initializer.rst

+===========
+Initializer
+===========
+
+
+
+Initializer
+-----------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: Initializer
+    :noindex:
+
+
+
+ConstantInitializer
+-------------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: ConstantInitializer
+    :noindex:
+
+
+
+UniformInitializer
+------------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: UniformInitializer
+    :noindex:
+
+
+
+NormalInitializer
+-----------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: NormalInitializer
+    :noindex:
+
+
+XavierInitializer
+-----------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: XavierInitializer
+    :noindex:
+
+
+MSRAInitializer
+---------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: MSRAInitializer
+    :noindex:
+

doc/api/v2/fluid/layers.rst

+==========
+Layers
+==========
+
+
+fc
+---
+..  autofunction:: paddle.v2.fluid.layers.fc
+    :noindex:
+
+embedding
+---------
+..  autofunction:: paddle.v2.fluid.layers.embedding
+    :noindex:
+
+dynamic_lstm
+------------
+..  autofunction:: paddle.v2.fluid.layers.dynamic_lstm
+    :noindex:
+
+data
+---------
+..  autofunction:: paddle.v2.fluid.layers.data
+    :noindex:
+
+mean
+---------
+..  autofunction:: paddle.v2.fluid.layers.mean
+    :noindex:
+
+mul
+---------
+..  autofunction:: paddle.v2.fluid.layers.mul
+    :noindex:
+
+elementwise_add
+---------------
+..  autofunction:: paddle.v2.fluid.layers.elementwise_add
+    :noindex:
+
+elementwise_div
+---------------
+..  autofunction:: paddle.v2.fluid.layers.elementwise_div
+    :noindex:
+
+
+dropout
+---------
+..  autofunction:: paddle.v2.fluid.layers.dropout
+    :noindex:
+
+
+reshape
+---------
+..  autofunction:: paddle.v2.fluid.layers.reshape
+    :noindex:
+
+
+sigmoid
+---------
+..  autofunction:: paddle.v2.fluid.layers.sigmoid
+    :noindex:
+
+
+scale
+---------
+..  autofunction:: paddle.v2.fluid.layers.scale
+    :noindex:
+
+
+reshape
+---------
+..  autofunction:: paddle.v2.fluid.layers.reshape
+    :noindex:
+
+
+transpose
+---------
+..  autofunction:: paddle.v2.fluid.layers.transpose
+    :noindex:
+
+
+sigmoid_cross_entropy_with_logits
+---------
+..  autofunction:: paddle.v2.fluid.layers.esigmoid_cross_entropy_with_logits
+    :noindex:
+
+
+cast
+---------
+..  autofunction:: paddle.v2.fluid.layers.cast
+    :noindex:
+
+
+concat
+---------
+..  autofunction:: paddle.v2.fluid.layers.concat
+    :noindex:
+
+
+sums
+---------
+..  autofunction:: paddle.v2.fluid.layers.sums
+    :noindex:
+
+
+linear_chain_crf
+---------
+..  autofunction:: paddle.v2.fluid.layers.linear_chain_crf
+    :noindex:
+
+
+assign
+---------
+..  autofunction:: paddle.v2.fluid.layers.embedding
+    :noindex:
+
+
+split_lod_tensor
+---------
+..  autofunction:: paddle.v2.fluid.layers.split_lod_tensor
+    :noindex:
+
+
+merge_lod_tensor
+---------
+..  autofunction:: paddle.v2.fluid.layers.merge_lod_tensor
+    :noindex:
+
+cos_sim
+---------
+..  autofunction:: paddle.v2.fluid.layers.cos_sim
+    :noindex:
+
+
+cross_entropy
+---------
+..  autofunction:: paddle.v2.fluid.layers.cross_entropy
+    :noindex:
+
+
+
+square_error_cost
+---------
+..  autofunction:: paddle.v2.fluid.layers.square_error_cost
+    :noindex:
+
+
+accuracy
+---------
+..  autofunction:: paddle.v2.fluid.layers.accuracy
+    :noindex:
+
+
+sequence_conv
+---------
+..  autofunction:: paddle.v2.fluid.layers.sequence_conv
+    :noindex:
+
+
+conv2d
+---------
+..  autofunction:: paddle.v2.fluid.layers.conv2d
+    :noindex:
+
+
+sequence_pool
+---------
+..  autofunction:: paddle.v2.fluid.layers.sequence_pool
+    :noindex:
+
+
+pool2d
+---------
+..  autofunction:: paddle.v2.fluid.layers.pool2d
+    :noindex:
+
+
+batch_norm
+---------
+..  autofunction:: paddle.v2.fluid.layers.batch_norm
+    :noindex:
+
+
+beam_search_decode
+---------
+..  autofunction:: paddle.v2.fluid.layers.beam_search_decode
+    :noindex:
+
+
+lstm
+---------
+..  autofunction:: paddle.v2.fluid.layers.lstm
+    :noindex:
+
+
+lod_rank_table
+---------
+..  autofunction:: paddle.v2.fluid.layers.lod_rank_table
+    :noindex:
+
+
+max_sequence_len
+---------
+..  autofunction:: paddle.v2.fluid.layers.max_sequence_len
+    :noindex:
+
+
+topk
+---------
+..  autofunction:: paddle.v2.fluid.layers.topk
+    :noindex:
+
+
+lod_tensor_to_array
+---------
+..  autofunction:: paddle.v2.fluid.layers.lod_tensor_to_array
+    :noindex:
+
+
+
+array_to_lod_tensor
+---------
+..  autofunction:: paddle.v2.fluid.layers.array_to_lod_tensor
+    :noindex:
+
+
+
+
+fill_constant
+---------
+..  autofunction:: paddle.v2.fluid.layers.fill_constant
+    :noindex:
+
+
+
+fill_constant_batch_size_like
+---------
+..  autofunction:: paddle.v2.fluid.layers.fill_constant_batch_size_like
+    :noindex:
+
+
+ones
+---------
+..  autofunction:: paddle.v2.fluid.layers.ones
+    :noindex:
+
+
+zeros
+---------
+..  autofunction:: paddle.v2.fluid.layers.zeros
+    :noindex:
+
+
+increment
+---------
+..  autofunction:: paddle.v2.fluid.layers.increment
+    :noindex:
+
+
+array_write
+---------
+..  autofunction:: paddle.v2.fluid.layers.array_write
+    :noindex:
+
+
+
+create_array
+---------
+..  autofunction:: paddle.v2.fluid.layers.create_array
+    :noindex:
+
+
+less_than
+---------
+..  autofunction:: paddle.v2.fluid.layers.less_than
+    :noindex:
+
+
+array_read
+---------
+..  autofunction:: paddle.v2.fluid.layers.array_read
+    :noindex:
+
+
+shrink_memory
+---------
+..  autofunction:: paddle.v2.fluid.layers.shrink_memory
+    :noindex:
+
+
+array_length
+---------
+..  autofunction:: paddle.v2.fluid.layers.array_length
+    :noindex:
+
+
+conv2d_transpose
+---------
+..  autofunction:: paddle.v2.fluid.layers.conv2d_transpose
+    :noindex:
+

doc/api/v2/fluid/nets.rst

+===========
+Nets
+===========
+
+simple_img_conv_pool
+-----------
+..  autofunction:: paddle.v2.fluid.nets.simple_img_conv_pool
+    :noindex:
+
+
+img_conv_group
+-----------
+..  autofunction:: paddle.v2.fluid.nets.img_conv_group
+    :noindex:
+
+
+sequence_conv_pool
+-----------
+..  autofunction:: paddle.v2.fluid.nets.sequence_conv_pool
+    :noindex:
+
+

doc/api/v2/fluid/optimizer.rst

+===========
+Optimizer
+===========
+
+Optimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: Optimizer
+    :noindex:
+
+
+SGDOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: SGDOptimizer
+    :noindex:
+
+
+
+MomentumOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: MomentumOptimizer
+    :noindex:
+
+
+
+AdagradOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: AdagradOptimizer
+    :noindex:
+
+
+AdamOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: AdamOptimizer
+    :noindex:
+
+
+AdamaxOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: AdamaxOptimizer
+    :noindex:
+
+
+DecayedAdagradOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: DecayedAdagradOptimizer
+    :noindex:
+

doc/api/v2/fluid/param_attr.rst

+===========
+ParamAttr
+===========
+
+
+
+ParamAttr
+-----------
+..  automodule:: paddle.v2.fluid.param_attr
+    :members: ParamAttr
+    :noindex:

doc/api/v2/fluid/profiler.rst

+===========
+Profiler
+===========
+
+
+
+Profiler
+-----------
+..  autofunction:: paddle.v2.fluid.profiler.cuda_profiler
+    :noindex:

doc/api/v2/fluid/regularizer.rst

+===========
+Regularizer
+===========
+
+WeightDecayRegularizer
+-----------
+..  automodule:: paddle.v2.fluid.regularizer
+    :members: WeightDecayRegularizer
+    :noindex:
+
+
+L2DecayRegularizer
+-----------
+..  automodule:: paddle.v2.fluid.regularizer
+    :members: L2DecayRegularizer
+    :noindex:
+
+
+
+L1DecayRegularizer
+-----------
+..  automodule:: paddle.v2.fluid.regularizer
+    :members: L1DecayRegularizer
+
+

python/paddle/v2/fluid/layers.py

@@ -31,11 +31,9 @@ def fc(input,
        size: The size of the layer
        num_flatten_dims: Number of columns in input
        param_attr: The parameters/weights to the FC Layer
-       param_initializer: Initializer used for the weight/parameter.
-       If None, XavierInitializer() is used
+       param_initializer: Initializer used for the weight/parameter. If None, XavierInitializer() is used
        bias_attr: The bias parameter for the FC layer
-       bias_initializer: Initializer used for the bias.
-       If None, then ConstantInitializer() is used
+       bias_initializer: Initializer used for the bias. If None, then ConstantInitializer() is used
        act: Activation to be applied to the output of FC layer
        name: Name/alias of the function
        main_program: Name of the main program that calls this